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Exothermic vs Endothermic 🔥 Exothermic: More energy released making bonds than breaking them Products have less energy than reactants Energy change (ΔH) is negative 🧊 Endothermic: More energy used to break bonds than released Products have more energy than reactants Energy change (ΔH) is positive 2️⃣ Energy Level Diagrams Exothermic ...

How Do You Represent Exothermic Reactions On Energy Diagrams? Understanding how energy changes in chemical reactions is essential for anyone studying chemistry. In this informative video, we will guide you through the representation of exothermic reactions using energy diagrams. We'll explain the key components of these diagrams, including the ...

How Does Atomic Size Influence Ionization Energy? In this informative video, we will discuss the relationship between atomic size and ionization energy, two fundamental concepts in chemistry that help explain the behavior of elements. We will begin by defining ionization energy and its significance in the context of atomic structure ...

Crack the Arrhenius Equation and master how to calculate activation energy both mathematically and graphically in this short, clear A Level Chemistry lesson. Fully aligned with the Edexcel A Level Chemistry specification, this video also covers logarithms, including natural logs (ln) — essential for understanding the graph-based method. In ...

Unlock the secrets of activation energy and catalysis in this short A Level Chemistry lesson, aligned with the Edexcel specification. Perfect for revision or first-time learning, this video covers the types of catalysts — including homogeneous, heterogeneous, and autocatalysis — and explains the three key stages of heterogeneous catalysis ...

How Is Thermal Diffusivity Measured? In this informative video, we’ll discuss the measurement of thermal diffusivity and its significance in various fields of chemistry. We will outline what thermal diffusivity is and how it relates to the movement of heat through different materials. You’ll learn about the most common method for measuring ...

http://scienceshorts.net Energy profiles, enthalpy and bond energy calculations. ---------------------------------------- 00:00 Exothermic & endothermic reaction profiles 04:03 Bond energies - ---------------------------------------------------------------------- I don't charge anyone to watch my videos, so please donate if you can to keep me ...

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I want to help you achieve the grades you (and I) know you are capable of; these grades are the stepping stone to your future. Even if you don't want to study science or maths further, the grades you get now will open doors in the future. Get exam ready for GCSE Maths https://primrosekitten.org/gcse-maths/ Get exam ready for GCSE science https ...

How Does Temperature Affect Sublimation? In this informative video, we will explain the fascinating process of sublimation and how temperature plays a key role in it. Sublimation occurs when a solid transitions directly into a gas without passing through the liquid phase. We will discuss the relationship between temperature and vapor pressure ...

Grumpy Professor Hank admits to being wrong about how everything is chemicals. But he now wants you to listen as he blows your mind with a new sweeping statement: everything (yes, really everything this time) is energy. What?! This week, Hank takes us on a quick tour of how thermodynamics is applied in chemistry using his toy trebuchet as an ...

Heating & Cooling Curves | Kinetic Theory, Evaporation & Boiling | Class 10 Chemistry |Federal Board --- In this **Class 10 Chemistry** lecture based on the **Federal Board's New Book 2025**, we cover an essential topic from the **chapter on States of Matter**: 🔬 **Heating and Cooling Curves**, along with **Kinetic Theory Interpretation ...

In this video you'll learn: - The 'conservation of energy principle' - The different energy stores - How energy is transferred between stores - What we mean by 'work done' General info: - Suitable for all GCSE and IGCSE courses Exam board specific info: AQA - Everything is relevant to your course! IGCSE Edexcel - Everything is relevant to your ...

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738 Great deals on workbooks for schools https://www.freesciencelessons ...

Explore the fascinating world of **Energy Transformation** in our latest video, "Energy Transformation: Powering Our World"! Discover how energy changes forms—from chemical to electrical, mechanical to thermal—powering everything we do in our daily lives. Learn about common energy transformations you encounter, like how your food fuels your ...

This video looks at: 0:29 - The structure of an atom 3:22 - What ions are 4:53 - What the nuclear symbol tells us This video is suitable for: - All tiers - All exam boards - Triple and combined science Related videos: GCSE Chemistry playlist: https://www.youtube.com/watch?v=fN8kH9Vvqo0&list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W GCSE Biology ...

Welcome to Part-II of Lecture 03 from Unit 2 "Matter" for Class 10 Chemistry (FBISE, National Book Foundation). In this video, we explore the cooling curve in detail and interpret it through the kinetic molecular theory. You'll learn how the energy of particles changes during phase transitions, and how temperature remains constant during ...

This video covers: 0:10 - What 'word equation', 'reactants' and 'products' mean 0:48 - What a symbol equation is 1:22 - How to balance an equation and the RULES of balancing 3:45 - Balancing example no.2 This video is suitable for: - All tiers - All exam boards - Triple and combined science Related videos/topics: GCSE Chemistry playlist: https ...

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738 Great deals on workbooks for schools https://www.freesciencelessons ...

What Are Endothermic & Exothermic Reactions | Chemistry | FuseSchool An exothermic reaction gives off energy to the surroundings; like a fire giving off heat. An endothermic reaction takes in energy from the surroundings; like a snowman melting. Exothermic reactions transfer energy to the surroundings, and this energy is usually heat energy ...

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738 Great deals on workbooks for schools https://www.freesciencelessons ...

This video covers: 0:43 - The number of electrons per energy level 4:24 - why atoms react / why they lose or gain electrons This video is suitable for: - All tiers - All exam boards - Triple and combined science Related videos/topics: GCSE Chemistry playlist: https://www.youtube.com/watch?v=fN8kH9Vvqo0&list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W ...

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738 Great deals on workbooks for schools https://www.freesciencelessons ...

This video covers: 0:21 - What a molecule is 1:11 - What a compound is 3:11 - How to use brackets in a chemical formula 4:48 - What a mixture is This video is suitable for: - All tiers - All exam boards - Triple and combined science Related videos/topics: GCSE Chemistry playlist: https://www.youtube.com/watch?v=fN8kH9Vvqo0&list ...

What Is Electrolysis | Reactions | Chemistry | FuseSchool Electrolysis is electrical current flow through a liquid which causes chemical changes. The liquid can be a molten ionic compound or aqueous solution. The liquid will contain free-flowing positive ions and negative ions. The positive ions are called cations, and the negative ions are ...

In this video we'll look at: - Some examples of reactions that happen at different rates - The different ways we can calculate the rate of a reaction - Some examples of calculating the rate of reaction using decimetres cubed and minutes (higher tier)

This chemistry video tutorial explains how to calculate the enthalpy of reaction by using the average bond dissociation energies listed in a table. It contains examples and practice problems of calculating the enthalpy of formation of 1 mole of HCl, the enthalpy of combustion of methane and the enthalpy of reaction between methane and chlorine ...

This video covers: - The structure of the atom - The difference between protons, neutrons and electrons - What isotopes are - Energy levels - Ionisation General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and foundation tiers - Suitable for triple and combined science Exam board specific info: AQA - Everything is ...

I want to help you achieve the grades you (and I) know you are capable of; these grades are the stepping stone to your future. Even if you don't want to study science or maths further, the grades you get now will open doors in the future. Get exam ready for GCSE Maths https://primrosekitten.org/gcse-maths/ Get exam ready for GCSE science https ...

This video covers: - What internal energy is - Relationship between kinetic energy, internal energy and temperature - What specific heat capacity is - How to use specific heat capacity in an equation General info: - Suitable for all GCSE and IGCSE courses - See below for whether it is higher or foundation tier for your exam board - See below ...

The enthalpy change for the following reaction is -81.1 kJ. Using bond energies, estimate the H-Br bond energy in HBr(g). 2HBr(g) + Cl2(g) - gt; 2HCl(g) + Br2(g) kJ/mol Watch the full video at: https://www.numerade.com/ask/question/the-enthalpy-change-for-the-following-reaction-is-811-kj-using-bond-energies-estimate-the-h-br-bond-energy-in-hbrg ...

This video covers: - Conservation of energy principle - Open vs closes systems - Examples of how energy is transferred General info: - Suitable for all GCSE and IGCSE courses Exam board specific info: AQA - Everything is relevant to your course! IGCSE Edexcel - Everything is relevant to your course! Edexcel - Everything is relevant to your ...

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738 Great deals on workbooks for schools https://www.freesciencelessons ...

This video covers: - Le Chatelier's Principle - i.e. the idea that when a change is made to a system at equilibrium, the position of equilibrium moves to counteract the change that was made. - What happens when temperature is changed - What happens when pressure is changed - What happens when concentration is changed This video is suitable for ...

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738 Great deals on workbooks for schools https://www.freesciencelessons ...

This video covers: - What bond energies are - That bond breaking is endothermic - That bond formation is exothermic - How to calculate bond energies - Two example calculations This video is suitable for: - Higher tier only - All exam boards - Triple and combined science

In this video we cover : - What exothermic and endothermic reactions are - What reaction profiles are and how to draw them - What activation energy is and how we show it on reaction profiles

This chemistry provides a basic introduction into the born Haber cycle. It explains how to calculate the enthalpy of formation of a compound using the lattice energy, first ionization energy and second ionization energy values, electron affinity, and bonding energy for the substances that make up the compound. It explains how to use Hess law to ...

This is a 7 minute long summary of all the physics to do with energy that you need to remember for the AQA 9-1 GCSE course, whether you're studying Combined Trilogy or the full Physics course. There are energy stores and transfers, equations for kinetic, elastic and gravitational energy stores, specific heat capacity, power, efficiency and ...

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738 Great deals on workbooks for schools https://www.freesciencelessons ...

Learn all about the properties and trends of the group 7 (halogens) and group 0 (noble gases) elements. Including why halogens become less reactive as you go down the group, and why noble gases are so unreactive. Suitable for: Combined and separate science All exam boards Paper 1

This chemistry video tutorial explains how to solve common Hess's law problems. It discusses how to calculate the enthalpy change of a reaction using Hess's law. Chemistry 1 Final Exam Review: https://www.youtube.com/watch?v=5yw1YH7YA7c Thermochemistry - Free Formula Sheet: https://www.video-tutor.net/chemistry-formula-sheets.html ...

In this video we cover: - How our sources of energy have changed throughout human history - Where we use most of our energy today i.e. transport and domestic - How renewable is our electricity (spoiler alert... not very!) General info: - Suitable for all GCSE and IGCSE courses Exam board specific info: AQA - Everything is relevant to your ...

This video explains 'particle theory' and uses it to describe the 3 states of matter: solid, liquid and gas. It also covers how substances move between these states at the particle level. This video is suitable for: - All exam boards - Triple and combined science - Higher and Foundation tiers The last part of the video on the limitations of ...

For thousands of questions and detailed answers, check out our GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738 Great deals on workbooks for schools https://www.freesciencelessons ...

Learn the basics about Energy Levels and Electron Configuration. Where do you find energy levels? How do you recognize electron configuration? Find out more in this video! This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org ...

In this video you'll learn: - How speed and mass affect kinetic energy - How to use the kinetic energy equation General info: - You need to memorise the equation for kinetic energy - Suitable for all GCSE and IGCSE courses Exam board specific info: AQA - Everything is relevant to your course! IGCSE Edexcel - Everything is relevant to your ...

This video provides a basic introduction into Gibbs Free Energy, Entropy, and Enthalpy. It explains how to calculate the equilibrium constant K given the standard free energy change of a reaction and so much more. Get The Full 1 Hour 49 Min Video: https://bit.ly/41WNmI9 Direct Link to The Full Video: https://bit.ly/3Zsdhoa PDF Worksheet - 20 ...

This video covers the following - The difference between a normal reaction and a reversible reaction - What is meant by 'equilibrium' - What is meant by the 'position of equilibrium'