1. A de-superheater works by injecting liquid water into a flow of superheated steam. With 2 kg/s at 300 kPa and 200°C, steam flow in, what mass flow rate of liquid water at 20°C should be added to generate saturated vapor at 300 kPa?
2. We also want to know the rate of entropy generation in the process. Assume no external heat transfer and no work for de-superheater.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

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explanation:

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explanation: