topic 2 energetics
- Created by: danielle cairns
- Created on: 04-03-15 13:45
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- topic 2 energetics
- endothermic
- take in heat
- endothermic
- exothermic
- topic 2 energetics
- endothermic
- take in heat
- endothermic
- enthalpy change is negative
- topic 2 energetics
- enthalpy change is positive
- gives out heat
- exothermic
- enthalpy change is negative
- exothermic
- energy transferred
- energy transferred = mass x temp change x specific heat capacity
- definitions
- enthalpy change is the overall energy exchanged with the surrounding when a change happens at constant pressure and the final temp is the same as the initial temp
- definitions
- definitions
- specific heat capacity is the energy needed to raise the temperature of 1g of the material by 1k
- Hess's law
- the enthalpy change in converting reactants to products is the same regardless of the route taken providing the initial and final conditions are the same
- Hess's law steps
- Hess's law
- the enthalpy change in converting reactants to products is the same regardless of the route taken providing the initial and final conditions are the same
- step 1- set up the Hess's cycle
- step 2- put the numbers into the cycle
- step 3 work out enthalpy change
- step 2- put the numbers into the cycle
- Hess's law
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