Effect of temperature on reaction rate:
Temperature = Measure of average kinetic energy of particles in energy.
Activation energy = The minimum energy required for particles to collide successfully. They also have the potential to react if over this level but don’t always react.
Enthalpy:
? - Measure of energy stored in a chemical.
ΔH - Change in enthalpy
ΔH = Hproducts - Hreactants
If ΔH is positive, then is it exothermic. If ΔH is negative, then is it endothermic. Units used for ΔH is ‘kJ mol -1’
If the temperature is exothermic (giving out heat), then the temperature will increase, decreasing the reaction rate as it will occur faster.
If the temperature is endothermic (taking in heat), the the temperature will decrease, increasing the reaction rate as it will occur slower.
(*If the temperature is too high, it may denature enzymes.)
