Key Points
1 cal = 4.184 J
1 kJ = 1000 J
q = mCΔT
q = heat ( calories or Joules)
m = mass ( grams)
C = specific heat capacity
ΔT = change in temperature
Heat flows from a higher temperature to a lower temperature
Endothermic Reaction - Absorbing Heat
1 cal = 4.184 J
1 kJ = 1000 J
q = mCΔT
q = heat ( calories or Joules)
m = mass ( grams)
C = specific heat capacity
ΔT = change in temperature
Heat flows from a higher temperature to a lower temperature
Endothermic Reaction - Absorbing Heat
- Heats goes in
- + q or ΔH
- On the reactant side
- feels " cold "
- products higher than reactants
- Heats goes out
- - q or -ΔH
- On the products side
- feels " warm or hot "
- products lower than reactants