An ideal gas received an amount of heat of 400 J, and its internal energy increased by 156 J.

An ideal gas received an amount of heat of 400 J, and its internal energy increased by 156 J. Determine the work of the gas.

According to the first law of thermodynamics:

∆U = Q – A, where ∆U is the change in the internal energy of the ideal gas when heat is supplied to it (∆U = 156 J), Q is the amount of heat that was transferred to the ideal gas (Q = 400 J), A is the perfect work gas (J).

Let us express and calculate the work of an ideal gas:

A = Q – ∆U = 400 – 156 = 244 J.

Answer: The work done by an ideal gas is 244 J.