The internal energy of 1 mol of a monatomic ideal gas is U = 32nRT. When it is heated from 300 K to 400 K, its internal energy increases by:

  1. 1250 J
  2. 2490 J
  3. 831 J
  4. 623 J
Answer

A) 1250 J

Delta U = 32nRDelta T = 1.5 1 8.31 100 = 1250 J. SLO P-11-C-12 · Understanding

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