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NEST2018ChemistryStates of Matter

The internal energy per mole of an ideal gas is denoted by E _ ideal . The same for a real gas obeying van der Waals equation is E _ real . Assuming the average kinetic energy of the molecules of the two gases at the same temperature to be equal, the correct statement for the gas at low pressure is

Options

  1. AE _ real E _ ideal
  2. BE _ real = E _ ideal
  3. CE _ real decreases for isothermal expansion
  4. DE _ ideal increases for isothermal expansion

Correct answer

A. E _ real E _ ideal

Step-by-step solution

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