4-Determine the specific volume of superheated water vapor at 10 MPa and 400°C.

2. A sealed rigid vessel has volume of 1 m³ and contains 2 kg of water at 100°C. The vessel is now heated. If a safety pressure valve is installed, at what pressure should the valve be set to have a maximum temperature of 200°C?

Please solve it fast , Without wasting a time. (1) Is it possible to have water vapor at 5°C? If so, what would be the saturated pressure?

Begin with a rigid closed cylinder with fixed 1 L volume at 50 atm pressure and 350 K temperature. Plot the pressure as a function of temperature, as the temperature falls to 200K. Assume the contained fluid is 100% carbon dioxide – assume ideal gas

Properties of Pure Substancies What is the specific internal energy of water at 50 kPa and 20°C?

Refrigeration tubing is 2 inches in diameter and 10 ft. long and contains R 12 as a saturated vapor at o°F. What is the mass of R 12 in the tubing?

c. What is the internal energy, u, in kJ/kg of refrigerant R22 at temperature T=-10°C. and specific volume v=0.055 m³/kg? Draw a p-v and T-o diagram and locate the state. What is the phase of the state?

Water in a 5-cm-deep pan is observed to boil at 98oC.At what temperature will the water in a 40-cm-deep pan boil?Assume both pans are full of water. Use 1000 kg/m3 as the density of water. Please give your answer in oC. You will need to assume that phase change only takes place on the bottom surface of the pan. Please start by finding the atmospheric pressure for the 5-cm-deep case. Then find the pressure at the bottom of the deeper pan.

3- What is the vapor pressure when a liquid that obeys the Trouton rule boils at a temperature equal to 1/3 of its normal boiling temperature?

A rigid vessel of 0.5 m3 volume containing saturated steam at 109°C, how much heat must be removed to bring its temperature to 25°C. *