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Thermodynamics
First Law of Thermodynamics
GATE 2015
Easy

For an ideal gas with constant values of specific heats, for calculation of the specific enthalpy,

  • it is sufficient to know only the temperature
  • Bboth temperature and pressure are required to be known
  • Cboth temperature and volume are required to be known
  • Dboth temperature and mass are required to be known

Explanation

For an ideal gas, enthalpy is a function of temperature alone (h=cpT, referenced to some datum), independent of pressure or volume — one of the defining properties of the ideal-gas model.

Source: GATE ME 2015 (Session 1) (2015)

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