Chapter 7, Problem 7.16P

9. Air is expanded from 400 kPa, 600 K in a polytropic process to 150 kPa, 400 K in a piston cylinder arrangement. Find the polytropic exponent n and the work and heat transfer per kg air using constant heat capacity.

QUI A piston-cylinder device with a set of stops initially contains 300 g of steam at 1000 Kpa and 400 C. Find the work if the final state IMpa and 250 C, and work if the position of the stops corresponds to 60% of the initial volume and also find the temperature at the final state if P-500Kpa Steam 300 g 1000 Kpy 400°C e

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A factory generates compressed air from 100 kPa, 17°C by compression to 800 kPa, 500 K, after which it cools in a constant pressure cooler to 300 K, (see Fig. P4.36). Find the specific compressor work and the specific heat transfer in the cooler. 1 2 3 Compressor -w. Compressor section Cooler section

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A 4 m3 cryogenic storage tank contains nitrogen at 110 K, with quality 25%. Saturatedvapor is now slowly withdrawn while some heat transfer takes place to a final state of110 K, x = 0.65. Find the mass withdrawn and the heat transfer.

Provide correct answer , Attach steam table for verification. 1)Find the specific volume and entropy of water at 100bar and 200°c

QUI A piston-cylinder device with a set of stops initially contains 300 g of steam at 1000 Kpa and 400 C. Find the work if the final state 1Mpa and 250 C, and work if the position of the stops corresponds to 60% of the initial volume and also find the temperature at the final state if P-500Kpa Steam 300 g 1000 Kpy 400°C e