$(4$ points$)$

A $0\mathrm{.}16m^3$ rigid tank contains refrigerant $134$ a at $650$ kPa $.$ Initially, $18\%$ of the volume is occupied by liquid R$-134$a and the rest is occupied by vapor. When a valve at the

bottom of the tank is opened, saturated liquid refrigerant leaves the tank. The valve is closed when tank is only occupied by saturated vapor. Heat is transferred to the tank to

keep the temperature constant.

How much refrigerant leaves the tank?

kg

What is the amount of heat transferred to the system?

kJ