1. Ammonia with a specific volume of 1.94 m³ /kg flows at a rate of 3.3 kg/s through a tube with a cross sectional area of 0.01m². Determine the average velocity across the tube cross section. Answer: 640.2 m/s

I need question d

This question requires the use of the extracts from the tables of thermodynamic properties supplied. Ammonia, NH3, was once a commonly used refrigerant. In a particular (very old) refrigeration plant, ammonia has a pressure of 6.1 bar and a temperature of 110 °C. What would be the specific enthalpy of the ammonia under these conditions. a. 1622 kJ/kg O b. 1702 kJ/kg 1454 kJ/kg O d. 228 kJ/kg 1583 kJ/kg O C. e.

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Which of the following are correct and valid for the Kelvin-Plank statement? O a. Any device O b. Kelvin- Planck O c. It is possible for any O d. No heat engine can have a thermal O e. Kelvin- Planck O f. It is impossible O g. It is impossible for any device O h. It is impossible that statement statement to construct to construct of the second law is device that a device that a device that violates of the efficiency of 100 second law is the that operates in a cycle and produces no effect other than Kelvin- operates in a cycle and produces no effect other than operates negative statement, and a operates on a cycle to receive heat from a single reservoir Planck percent, or as for a positive statement, and a positive on a cycle to receive heat statement power plant to operate, the working fluid also violates negative statement the from a statement the transfer the transfer single reservoir and Clausius cannot be can be of heat from and of heat from a lower- temperature body to a higher-…

This question requires the use of the extracts from the tables of thermodynamic properties supplied. Ammonia, NH3, was once a commonly used refrigerant. In a particular (very old) refrigeration plant, ammonia has a pressure of 2.9 bar and a temperature of 40 °C. What would be the specific enthalpy of the ammonia under these conditions. 1433 kJ/kg a. b. 1552 kJ/kg 135 kJ/kg O d. 1622 kJ/kg O e. 1665 kJ/kg

Given information is attached. A. Estimate the temperature of the saturated steam at 15.0 bar. (In degrees Celsius) B. Estimate the temperature of the superheated steam at 20.0 bar.