Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

The First Law of Thermodynamics in mathematical form is:
Options
A ΔE = Q + W
Correct Answer
B ΔE = Q − W
C ΔE = W − Q
D ΔE = QW
Correct Answer

Option A is the correct answer.

Detailed Explanation

When W is work done on the system, ΔE = Q + W.

Hint

Internal energy change equals heat added plus work done on the system.

Question Info