Answers: MCQ Online Exercise 1_2A Enthalpy

1.
a)
	Line showing position of EA.


2.	a)
i)	Activation energy = 70kj mol^-1 Enthalpy change = +40 kj mol^-1
ii)	Activation energy = 30kj mol^-1 Enthalpy change = -40 kj mol^-1
b)	Activation energy would be reduced by use of a catalyst.
3.


4.