At 298K, enthalpy of fusion of sodium metal is +2.6 kJ mol^–1 and enthalpy of vaporisation of liquid sodium is + 98.0 kJ mol^–1. Calculate the enthalpy of sublimation of solid sodium at 298K.

Solution

We know that,
$increment subscript sub straight H to the power of 0 space equals space increment subscript fus straight H to the power of 0 space plus space increment subscript vap straight H to the power of 0 space space space space space space space space space space space space equals 2.6 space kJ space mol to the power of negative 1 end exponent space plus space 98.0 space kJ space mol to the power of negative 1 end exponent space space space space space space space space space space space space space space equals 100.6 space kJ space mol to the power of negative 1 end exponent$

Some More Questions From Thermodynamics Chapter

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Thermodynamics

At 298K, enthalpy of fusion of sodium metal is +2.6 kJ mol^–1 and enthalpy of vaporisation of liquid sodium is + 98.0 kJ mol^–1. Calculate the enthalpy of sublimation of solid sodium at 298K.

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Thermodynamics

At 298K, enthalpy of fusion of sodium metal is +2.6 kJ mol–1 and enthalpy of vaporisation of liquid sodium is + 98.0 kJ mol–1. Calculate the enthalpy of sublimation of solid sodium at 298K.

Some More Questions From Thermodynamics Chapter

Define state variables of a system.

From thermodynamic point of view, to which system the animals and plants belong?

What is a state function?

A thermodynamic state function is a quantity

What is reversible process in thermodynamics?

Define irreversible change.

Name the variable that is kept constant in isochoric process and isobaric process.

Give one difference between an isothermal and an adiabatic process.

For the process to occur under adiabatic conditions, the correct condition is

Define internal energy of a system

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

At 298K, enthalpy of fusion of sodium metal is +2.6 kJ mol^–1 and enthalpy of vaporisation of liquid sodium is + 98.0 kJ mol^–1. Calculate the enthalpy of sublimation of solid sodium at 298K.