Practice It

Use the worked example above to help you solve this problem. An ideal gas absorbs $5\mathrm{.}12103$ J of energy while doing $2\mathrm{.}15103$ J of work on the environment during a constant pressure process.

$($a$)$

Compute the change in the internal energy of the gas.

$($b$)$

If the internal energy now drops by $4\mathrm{.}20103$ J and $2\mathrm{.}00103$ J is expelled from the system, find the change in volume, assuming a constant pressure process at $1\mathrm{.}01105$ Pa$.$

Your response is within $10\%$ of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four$-$digit accuracy to minimize roundoff error. m$3$