C3F ~ Energy
- Created by: Harriet.bea
- Created on: 25-11-15 20:10
Other questions in this quiz
2. What is the reaction to show whether it is an exothermic reaction or endothermic on?
- Measure the temperature of individual reactants and then mix them and measure the temp of the mixture.
- Put to alkalis in a beaker, mix. Add the acid slowly and measure the heat.
3. Do bonds break or are bonds formed in exothermic reactions?
- form. Energy released when bonds form.
- Break. Energy is taken in when bonds break (energy supplied to break bonds).
4. What is the equation for relating energy to SHC?
- E= M x C x 'O' ( e- energy (J), M= mass (KG), 'O' = temp change in degrees C)
- M=C x 'O' x E ( e- energy (J), M= mass (KG), 'O' = temp change in degrees C)
- C= m x E x 'o' ( e- energy (J), M= mass (KG), 'O' = temp change in degrees C)
5. What is an exothermic reaction?
- Reaction that gives out energy to surroundings usually in form of heat (shown by rise in temperature).
- Reactions That take in energy from surroundings usually in the form of heat (shown by fall in temperature).
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