Determine the solution of the following problem
Problem- An insulated rigid tank contains a saturated liquid-vapor mix of water initially at a pressure of 100 kPa. The mass of the mixture is 5 kg, but only 75.6 % of the total mass is liquid. An electric resistance heater is turned on within the tank until all the water has vaporized. The heater power is a constant 4.2 kW.
Part 1- What is the volume of the container? (m3)
Part 2- How long was the heater on (mins)
I need help to evaluate the answer of the above problem.