NEETChemistry-Thermodynamics
NEET Chemistry First Law of Thermodynamics MCQ Question
Type: MCQ-conceptual-Medium-Class 11
When 1 mole of a gas is heated at constant volume, temperature is raised from 298 to 308 K. If heat supplied to the gas is 500 J, then which statement is correct?
A
q = w = 500 J, ΔU = 0
B
q = ΔU = 500 J, w = 0
C
q = –w = 500 J, ΔU = 0
D
ΔU = 0, q = w = –500 J
Correct Answer
Option B
Detailed Explanation
At constant volume, work done is zero (w = 0), so the heat supplied (q) is equal to the change in internal energy (ΔU).
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