Question Detail

CHM 101 Thermochemistry Objective Question

Question

Compressing a gas with heat loss results in ΔU = __________ J.
Options
A -135.6
B 135.6
Correct Answer
C -64.8
D 64.8
Correct Answer

Option B is the correct answer.

Detailed Explanation

From the problem context: ΔU = q + w. Typically, compression work (w) is positive and large, heat loss (q) is negative and smaller, leading to a positive ΔU. The answer key states 135.6 J.

Hint

Work done on the system (compression) increases U more than heat loss decreases it.

Question Info