How many litres does 2 mol of an ideal gas occupy at 400 K and 1 Pa? Use Pa L/(mol K).

Answer and explanation

Correct answer: A. 66.4 L

  1. Step 1: Use , so .
  2. Step 2: L.
Answer
66.4 L.
Why not the others: 664 L: the power of ten of the pressure is mishandled. 6.64 L: the power of ten of the pressure is mishandled. 800 L: the gas constant is ignored and the quantities are multiplied.

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