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## Engineering

 Civil Engineering Chemical Engineering Electrical & Electronics Mechanical Engineering Computer Engineering Engineering Mathematics MATLAB Other Engineering Digital Electronics Biochemical & Biotechnology

problem 1: Derive an expression to arrive at a relation Cp - Cv = R.

problem 2: Define with a layout the given:

a) Refrigerator.
b) Heat Engine.
c) Heat pump.

problem 3: Derive an expression to find out the equation for the Change in enthalpy.

problem 4: Derive an expression to arrive at an expression for the change in internal energy.

problem 5: Define the term entropy? Derive an expression for the change in entropy in terms of different parameters like Pressure, Volume and Temperature.

problem 6: Derive an expression to find out:

a) Work done.
b) Heat transfer.
c) Change in Internal energy.
d) Change in Enthalpy.
e) Change in Entropy and pVT relations in an Isochoric process.

problem 7: Derive an expression to find out the heat transfer, work done and change in entropy in a polytropic process.

problem 8: Define with a layout the given:

a) Refrigerator.
b) Heat Engine.
c) Heat pump.

problem 9: Derive an expression to find out the equation for the Change in enthalpy.

problem 10: Derive an expression to arrive at an expression for change in internal energy.

problem 11: Air occupies a space of 0.3 m3 at a pressure of 2 bar and a temperature of 80o C. It is heated at constant volume, until pressure is 8 bar. Find out:

a) Temperature at the end of process.
b) Mass of air.
c) Change in internal energy change in enthalpy.
d) Change in entropy throughout the process.

problem 12: 1 kg of gas with initial volume 2.5 m3 is heated at constant pressure from 25 oC to 220 oC. Estimate heat added, work done, change in internal energy, change in enthalpy, change in entropy. As well compute the final pressure and final volume. Take Cp = 0.984 kJ/kg K; Cv = 0.728 kJ/kg K.

Mechanical Engineering, Engineering

• Category:- Mechanical Engineering
• Reference No.:- M93725

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