Question

For the process described, compare ΔH with ΔE of the system.

A solid yields a mixture of gases in an exothermic reaction that takes place in a container of variable volume.
A. ΔH is less than (more negative) Δ E of the system.
B. ΔH is greater than ΔE of the system.
C. ΔH is equal to ΔE of the system.
D. can't be determined without more information

Answer 1

In an exothermic reaction, ΔH is less than (more negative) ΔE of the system. Therefore, the correct answer is A. ΔH is less than (more negative) ΔE of the system.

Step-by-step explanation:

The process described in the question is the conversion of a solid to gases in an exothermic reaction that takes place in a container of variable volume. In this case, we need to compare ΔH (enthalpy change) with ΔE (change in internal energy) of the system.

In an exothermic reaction, ΔH is negative, indicating that heat is released from the system to the surroundings.

On the other hand, ΔE represents the change in internal energy of the system, which includes heat transfer and work done on or by the system. In this case, both ΔH and ΔE are negative.

Therefore, the correct answer is A. ΔH is less than (more negative) ΔE of the system.