Advertisement Remove all ads

Write Mathematical Equation of First Law of Thermodynamics for Isochoric Process - Chemistry

Advertisement Remove all ads
Advertisement Remove all ads
Advertisement Remove all ads

Write mathematical equation of first law of thermodynamics for Isochoric process

Advertisement Remove all ads

Solution

By substituting equation `W= -p_(ex).triangleV` in the equation `triangleU=q+W`, we get

`triangleU=q-p_(ex).triangleV .........(1)`

If the reaction is carried out in a closed container so that the volume of the system is constant, then`triangleV=0.`In such a case, no work is involved.

The equation (1) becomes `triangleU=q_v.`

Equation (1) suggests that the change in internal energy of the system is due to heat transfer. The subscript v indicates a constant volume process. As U is a state function, qv is also a state function. We see that an increase in the internal energy of a system is numerically equal to the heat absorbed by the system in a constant volume (isochoric) process.

Concept: Chemical Thermodynamics and Energetic - First Law of Thermodynamics
  Is there an error in this question or solution?
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×