Determine the entropy change of the refrigerant

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Problem 1:

A rigid tank contains 5 kg of refrigerant 134a. initially at 20^°C and 140 kPa. The refrigerant is now cooled while being stirred until its pressure drops to 100 kPa. Determine the entropy change of the refrigerant during this process.

Problem 2:

Consider the two-fluid manometer shown in the figure. Calculate the applied pressure difference P1 - P2. The specific gravity of carbon tetrachloride is SG_et= (density of carbon tetrachloride)/(density of water) = 1.595.

Reference no: EM13772946

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