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Problem $07\mathrm{.}047-$Entropy change in a rigid tank.

A $1\mathrm{.}400-m^3$ rigid tank contains refrigerant$-134$a initially at $200$ kPa and $40$ percent quality. Heat is transferred now to the

refrigerant from a source at $35C$ until the pressure rises to $400$ kPa $.$

Problem $07\mathrm{.}047.$c $-$ Total entropy change of the process

Determine total entropy change for this process. $($Round the final answer to four decimal places.$)$

The total entropy change for this process is

$k\frac{J}{K}.$