# Problem: A gas is compressed from an initial volume of 5.60 L to a final volume of 1.23 L by an external pressure of 1.00 atm. During the compression the gas releases 125 J of heat. What is the change in internal energy of the gas?

###### FREE Expert Solution

$\overline{){\mathbf{∆}}{\mathbf{E}}{\mathbf{=}}{\mathbf{q}}{\mathbf{+}}{\mathbf{w}}}$

where w is work; and q is the heat release or absorb

$\overline{){\mathbf{w}}{\mathbf{=}}{\mathbf{-}}{\mathbf{P}}{\mathbf{∆}}{\mathbf{V}}}$

###### Problem Details
A gas is compressed from an initial volume of 5.60 L to a final volume of 1.23 L by an external pressure of 1.00 atm. During the compression the gas releases 125 J of heat. What is the change in internal energy of the gas?