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

  1. Step 1: For constant pressure heating where volume doubles (), Charles's law gives , so .
  2. Step 2: The molar heat capacity at constant pressure for a monatomic ideal gas is .
  3. Step 3: Compute supplied heat energy: .
Answer
623.

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