of a monatomic ideal gas at is heated at constant pressure until its volume doubles. How much heat must be supplied, in joules? ()
Answer and explanation
Correct answer: A. 623
- Step 1: For constant pressure heating where volume doubles (), Charles's law gives , so .
- Step 2: The molar heat capacity at constant pressure for a monatomic ideal gas is .
- Step 3: Compute supplied heat energy: .
Answer
623.
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