Answer:
The answer to your question is: second option
Explanation:
occur faster than spontaneous reactions The speed of a reaction does not depend if it s spontaneous or not. This option is incorrect.
require outside interference to occur This option is true, non spontaneous reactions requiere heat, a catalizer or any interference to occur.
release free energy This option is not true, they could or not release energy
occur without an input of heat This option is false, most of non-spontaneous reactions requiere heat to occur.
