A rigid tank contains 7 kg of saturated vapor steam at 100°C. The steam is cooled to the ambient temperature of 25°C. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Determine the entropy change of the steam, in kJ/K. Use steam tables.

Air undergoes a process where T₁= 200 °K and T₂ = 1200 ºk. Determine the change in specific enthalpy (h₂h₁). You may NOT assume constant specific heats.

stion Completion Status: QUESTION 37 In an experiment, a certain amount of air is heated at constant pressure from 1.7 m, 33 °C and 97 kPa to 408 C. It is then cooled at constant volume back to its initial temperature. Calculate the change specific entropy in the cooling process in the correct unit in SI and 1 decimal place. Take Specific heat at constant pressure and constant volume for air as 1.005 kJ/kg K and 0.717 kJ/kg K respectively. add units. I decimal place. QUESTION 38 Save A Click Save and Submit too save and submit. Click Save All Answers to save all answers. 9d6070-5984-jpg O Type here to search

expa 6-Five kg of steam at pressure of 4.9 bar is produced from water at 20°C. Determine the amount of heat supplied if the steam is 0.9 dry. (12263kJ) 7-One kg of water at 47.8°C is heated under constant pressure of 13.7bar until it is converted into steam with 111°C degree of superheated. Determine the quantity of heat supplied during superheating and the total heat. (268kJ, 2852kJ) Special Home Work

QUESTION 38 In an experiment, a certain amount of air is heated at constant pressure from 1.7 m³, 30 ºC and 97 kPa to 423 'C. It is then cooled at constant volume back to its initial temperature. Calculate the change specific entropy in the constant pressure process in the correct unit in SI and 1 decimal place. Take Specific heat at constant pressure and constant volume for air as 1.006 kJ/kg K and 0.717 kJ/kg K respectively. Add unit. 1 decimal place.

A certain ideal gas with initial conditions of 0.1 m3 and 6 bar expands isothermally to 0.5 m3. Calculate the final pressure during the process. Give answers in kJ and kPa.

B5

Please show correct solution and clear explanation. Choose from the choices for the correct answer. Thank you.

Dont copy from others and answer should match. A large kitchen pot initially contains 5 kg of water at 25°C. A burner is turned on and heat is added to the water at a rate of 500 cal/sec. Determine how many minutes it will take for one-half of the mass to evaporate at standard atmospheric pressure.