a$)35$

Two tanks are connected by a valve and line. The volumes are both $1$ cubic meter with R$-134$ at $20$ C $,$ quality $15\%$ in A and tank B is evacuated. The valve is opened and saturated vapor flows from A into B until the pressures become equal. The process occurs slowly enough that all temperatures stay at $20$ C during the process.

$($a$)$ The initial specific internal energy in A is$.10\mathrm{.}3\mathrm{.}1\mathrm{.}18\mathrm{.}4$dots..$k\frac{J}{k}g$

$($b$)$ The initial mass in A is $.164\mathrm{.}4\mathrm{.}2$dotsdots..$kg$

c$)$ The final specific internal energy of R$-134$ is $..k\frac{J}{k}g$

d$)$ The total work during the process is $..$

$q,$

e$)$ The total heat transfer during the process is$.$ kJ

$q,.$kJ