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B4805 Pages: 2

Derive Maxwell relations using combined first and second law equations.

Derive Clausius-Clapeyron equation.
What are the applications of thermodynamic relations?

PART C
Answer any four full questions, each carries 10 marks.

Write short notes on P T diagram with neat sketch.
Derive the equations of Dalton’s law of partial pressure.

Identify the steam in the following three cases, using the steam tables and
giving necessary calculations supporting your claims.

i) 2 kg of steam at 8 bar with an enthalpy of 5538 kJ at a temperature of
170.490,

11) 1 kg of steam at 2550kPa occupies a volume of 0.2742൩്‌. also find
the steam temperature.

iii) 1 kg of steam at 60 bar with an enthalpy of 2470.73kJ/kg

Explain compressibility factor.
Write short notes on PVT surface with sketch.

Explain the working of Brayton cycle with the help of schematic diagram.
Derive the thermal efficiency using PV and TS diagram

In a Rankine cycle, the steam inlet to a turbine is dry saturated at a pressure of
35 bar and the exhaust pressure is 0.2bar. Calculate

i) Pump work

ii) Turbine work

iii) Rankine efficiency

iv) Condenser heat flow
Assume flow rate of 9.5 kg/s

Derive the thermal efficiency of Stirling cycle with the help of PV and TS

diagram.
೫ ೫ ‏ماد‎ ೫

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