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OSCOLPHYS$215\mathrm{.}2.$WA$\mathrm{.}009.$

The volume and pressure of a gas are $5\mathrm{.}00m^3$ and $2\mathrm{.}1$ atm respectively.

$($a$)$ If this gas expands to three times its initial volume while the pressure is constant, determine the work done on the gas.

What is the difference between work done on the gas and work done by the gas? Check units for consistency. J

$($b$)$ On the other hand, if this gas is compressed to two$-$thirds its initial volume while the pressure is constant, determine the work done on the gas.

Is the work done by the gas positive or negative when the volume decreases? J

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OSCOLPHYS$215\mathrm{.}1.$P$\mathrm{.}003.$

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