Oxygen gas is compressed in a piston$-$cylinder device from an initial state of $0\mathrm{.}8\frac{m^3}{k}g$ and $25C$ to a final state of $0\mathrm{.}1\frac{m^3}{k}g$ and $287C.$ Determine the entropy change of the oxygen during this process. Treat oxygen as an ideal gas. ANSWER: $-0\mathrm{.}105k\frac{J}{k}{g}^{**}K$ Can you show me on to find CV$?$

$])$:$\}$

$V_2=0\mathrm{.}1\frac{m^3}{K}g$

$T_2=[287$

State $2$

$25+273K$

Chart $A-2$

$C_V=$