Chemistry 3 2.0 / 5 based on 1 rating ? ChemistryGCSEAQA Created by: Ella BondCreated on: 15-04-13 15:43 What is a calorimeter used to measure? To measure the amount of energy released when substances burn. 1 of 8 What does a simple calorimeter consist of? Some water in a glass beaker which is heated by a flame. 2 of 8 Why are simple calorimeters not accurate? Because alot of the heat is used to heat the surroundings. 3 of 8 What is the equation used to measure the amount of energy released? Mass of water x specific heat capacity of the water x temperature change 4 of 8 What is activation energy? The minimum energy needed for the reaction to happen. 5 of 8 What is the reaction called when bonds are broken? Endothermic because energy is taken in. 6 of 8 What is the reaction called when now bonds are formed? Exothermic because energy is released. 7 of 8 What do catalysts do? Catalysts increase the rate of the reaction by providing a different pathway with a lower activation energy. 8 of 8
Comments
No comments have yet been made