What is the enthalpy hfg in kJ/kg of saturated steam at 22 MPa?

During processing in a steel mill, a 900 lb steel casting at 800°F is quenched by plunging it into a 550 gal oil bath, which is initially at a temperature of 100°F. After the casting cools and the oil bath warms, what is the final temperature of the two? The weight per unit volume of the oil is 7.5 lb/gal. (Express your answer using four significant figures.) T F

R-134a at 1.4 MPa has a specific volume of 0.02000 m³/kg. Determine the temperature of the R-134a based on: (a) The tables of data, (b) The ideal gas equation of state, and (c) The generalized compressibility chart. (d) Compare the result in (b) to the result in (a) and determine the percentage error. (e) Compare the result in (c) to the results in (a) and determine the percentage error.

A piston–cylinder device initially contains 50 L of liquid water at 40°C and 200 kPa. Heat istransferred to the water at constant pressure until the entire liquid is vaporized. i. What is the mass of the water?ii. What is the final temperature?iii. Determine the total enthalpy change.iv. Show the process on a T-v diagram with respect to saturation lines.

A piston-cylinder device initially contains 10L of liquid water at 25C and at atmospheric pressure of 101.325 kPa. Heat is added at constant pressure until the entire liquid is vaporized. (a) what is the mass of water (b) final temperature (c) amount of heat absorbed by the water.