Question

A negative enthalpy change coupled with an increase in ________ act together as the driving forces for processes (chemical reactions).

a) Entropy
b) Pressure
c) Volume
d) Temperature

Answer 1

In chemistry, a negative enthalpy change coupled with an increase in entropy act as the driving forces for processes (chemical reactions).

Step-by-step explanation:

In chemical reactions, a negative enthalpy change coupled with an increase in entropy (a measure of the degree of disorder) act together as the driving forces for the processes. When a reaction has a negative enthalpy change (exothermic) and the entropy increases, the reaction tends to be spontaneous. The increase in entropy represents a dispersal of energy and favors the reaction.