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Textbook Expert
Textbook ExpertVerified Tutor
23 Nov 2021

Given information

Substance is 

The relation between , and

 

Where,

  • is the standard energy change of formation.

  • is the standard entropy change of formation.

  • is the standard enthalpy change of formation.

Step-by-step explanation

Step 1.

The formula for the calculation of the enthalpy change ()

 

Where,

  • is the specific heat at constant pressure.

  • is a change in temperature.

  • is a number of moles.

The enthalpy change changes only when there is a change in temperature. It does not depend on pressure. Therefore, it will remain the same even if the standard pressure state is redefined.

 

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