Define: (1) Intensive property (1) Enthalpy of sublimation. 2 moles of an ideal gas are expanded isothermally and reversibly from 20L to 30 at 300 K Calculate the work done. (R = 8.314 JK-1 mol-1) [Ans.: W = 2023J) max
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The enthalpy of sublimation, or heat of sublimation, is the heat required to change one mole of a substance from solid state to gaseous state at a given combination of temperature and pressure, usually standard temperature and pressure (STP).
The enthalpy change that accompanies the conversion of one mole of solid directly into its vapour at constant temperature is called as enthalpy of sublimation.
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