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How much heat raises 1 mol of argon by 20 K at constant volume? (R = 8.31 J/mol K)
A416 J
B166 J
C125 J
D249 J
Answer & Solution
Correct answer: D. 249 J
Q = n Cv ΔT = 1 × (3/2)(8.31) × 20, which is about 249 J.
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