Find the polytropic exponent and work
A cylinder/piston contains a saturated vapor R-410a at 10 C; the volume is 10 L. The R-410a is compressed to 2MPa, 60 C in a reversible (internally) polytropic process. Find the polytropic exponent n ans calculate the work and heat transfer.
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A 30-cm-diameter, 5-m-long steam pipe passes through a room where the air temperature is 20 C. If the exposed surface of the pipe is a uniform 40 C, find the rate of heat loss from the pipe to the air if the surface heat-transfer coefficient is 8.
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The R-410a is compressed to 2MPa, 60 C in a reversible (internally) polytropic process. Find the polytropic exponent n ans calculate the work and heat transfer.
Find the critical value. Assume that the test is two-tailed and that n denotes the number of pairs of data. n = 60, = 0.05
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