600 Lbm of Refrigerant 134a is 1650 psi and 200 degree F Wha

60.0 Lbm of Refrigerant 134a is 165.0 psi and 200 degree F. What thermodynamic region is this State in? explain and justify your selection for part (a); and, find the specific internal energy (i.e., total internal energy in English units. For water at 325 degree C and 30 MPa, What thermodynamic region is this State in? Explain and justify your selection for part (a); and, Find the specific volume in SI units.

Solution

>> Part A

At 165 psi and 200 F for Refrigerant R-134a

From Properties Table,

State = SuperHeadted Steam

This is because Saturation Pressure is less than 200 F

And, specific internal energy = 129 BTU/lb

>> Part (B)

For Water at 325 C and 30 MPA

State = Sub Saturated Water

because, saturation temperature is more than 325 C

And, Specific Volume= 1.42*10^-3 ....ANSWE....R