Question

For the reaction:
$straight N subscript 2 left parenthesis straight g right parenthesis space plus space 3 straight H subscript 2 left parenthesis straight g right parenthesis space space rightwards arrow space space 2 NH subscript 3 left parenthesis straight g right parenthesis comma$
$increment straight H equals negative 95.4 space kJ space and space increment straight S space equals space minus 198.3 space kJ divided by straight K.$

Calculate the temperature at which it attains equilibrium.

Solution

According to Gibb's Helmoltz equation,
   $increment straight G space equals space increment straight H space minus space straight T increment straight S$
which it attains equilibrium,
$increment straight G space equals space 0$
   $0 space equals space increment straight H space minus space straight T increment straight S$
   $or space space increment straight H space equals space straight T increment straight S therefore space space space space space straight T space equals space fraction numerator increment straight H over denominator increment straight S end fraction space equals space fraction numerator negative 95.4 space kJ over denominator negative 198.3 space kJ space straight K to the power of negative 1 end exponent end fraction space equals space 0.48 space straight K.$

Some More Questions From Thermodynamics Chapter

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Thermodynamics

Some More Questions From Thermodynamics Chapter

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

Define enthalpy.

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For Daily Free Study Material Join wiredfaculty

Thermodynamics

For the reaction:Calculate the temperature at which it attains equilibrium.

Some More Questions From Thermodynamics Chapter

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

Define enthalpy.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation