Agas is kept in a rigid container and 100 j of heat is supplied to it. what is the work done by the gas and the change in the internal energy of the gas?

Work done: 0 J

Change in internal energy: +100 J

Explanation:

- The work done by the gas is given by:

where

p is the gas pressure

is the change in volume of the gas

Since the gas is kept in a rigid container, its volume is fixed, so there is no change in volume: therefore, and the work done is zero as well:

- The change in internal energy of the gas is given by the 1st law of thermodynamics:

where Q is the heat supplied to the gas. Since W=0 and Q=+100 J, then the change in internal energy of the gas is

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it was given as a lesson and guide for prayer.