Question

For a given process at constant pressure, ∆H is negative. This means that the process is _______.

A) a state function
B) endothermic
C) exothermic
D) equithermic
E) energy

Answer 1

Answer:
C. Exothermic

Answer 2

For a given process at constant pressure, ∆H is negative. This means that the process is C) exothermic.

What is Enthalpy?

∆H is the change in enthalpy within a system. Enthalpy is the sum of the internal energy within that system.

Equation

H = E + PV = Change in internal energy + Pressure * Volume

Step-by-step explanation

In endothermic processes, the amount of energy within the system increases and therefore ∆H increases. In exothermic processes, the amount of energy within the system decreases and therefore ∆H decreases. The best way to remember this is exo is energy exiting the system.