Steam enters a diffuser at 20 psia and 240F with a velocity of 900 ft/s and exits as saturated vapor at 240F and 100 ft/s. The exit area of the diffuser is 1 ft2. Determine (a) the mass flow rate of the steam and (b) the rate of entropy generation during this process. Assume an ambient temperature of 77F.

Q: What is the change in entropy as 58.3 J flows from 331°C to 197°C?

A: Given: Q=58.3j T1=331 deg.c=604K T2=197 deg.c=470K Lets's find Change in entropy.

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A: This problem can be solved using the formula for change in entropy in a process.

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