Physical Chemistry - SPEC Flashcards
1
Q
how would you calculate the heat energy change from a measured temperature
A
using Q = mc(change in temp)
2
Q
how would you calculate the molar enthalpy change from the heat energy change
A
heat energy change = Q (J)
molar enthalpy change = kJ / mol
3
Q
what is a catalyst
A
a substance that increases the rate of a reaction but is chemically unchanged at the end of the reaction
4
Q
how does a catalyst increase the rate of the reaction
A
by providing an alternate pathway with lower activation energy
