Physics

Problem

An ideal gas in a sealed cylinder absorbs

+500\,\text{J}

of energy by heating and then performs

200\,\text{J}

of work on the surroundings. What is the resulting change in the internal energy

\Delta U

of the gas? a)

+700\,\text{J}

+500\,\text{J}

+300\,\text{J}

-300\,\text{J}