The internal energy of 2 mol of a monatomic ideal gas is U = 32nRT. When it is heated from 250 K to 350 K, its internal energy increases by:

  1. 1250 J
  2. 4990 J
  3. 2490 J
  4. 1660 J
Answer

C) 2490 J

Delta U = 32nRDelta T = 1.5 2 8.31 100 = 2490 J. SLO P-11-C-12 · Understanding

Physics MCQ · More Kinetic Theory and First Law of Thermodynamics MCQs · Practise