Air enters a nozzle steadily at 280 kPa and 77°C with a velocity of 70 m/s...

Air enters a nozzle steadily at 280 kPa and 77°C with a velocity of 70 m/s and exits at 85 kPa and 320 m/s. The heat losses from the nozzle to the surrounding medium at 20°C are estimated to be 3.2 kJ/kg.

The table for the ideal-gas properties of air is given below.

Determine the exit temperature. (Round the final answer to one decimal).

The exit temperature is ______K

Determine the total entropy change for this process. (Round the final answer to four decimal places.) (You must provide an answer before moving on to the next part.)

The total entropy change for this process is ______kJ/kg·K.

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Expert Solution

genius_generous answered 1 year ago

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