Write short note on “Gibb’s phase rule”.
[3 marks]Distinguish between intensive and extensive properties with suitable example.
[4 marks]Explain the P-V-Tbehavior of pure fluids with the help of neat diagram.
[7 marks]Distinguish between state function and path function.
[3 marks]Explain about principle of corresponding states.
[4 marks]State first law of thermodynamics? Derive the expressions for 1st law of thermodynamics for non-flow process.
[7 marks]Heat is transferred to10 kg of air which is initially at 100 kPa and 300 K until its temperature reaches 600 K. Determine the change in internal energy and change in enthalpy, amount of heat supplied and the work done for a Constant volume process. Assume air as an ideal gas. Given that: R=8.314 kJ / kmol K, Cp=29.099 kJ / kmol K, Cv =20.785 kJ / kmol Kand molecular weight of air =29
[7 marks]State various equations of state for real gases.
[3 marks]Define the following i. Sensible heat ii. Latent heat iii. Standard heat of combustion iv. Standard heat of formation
[4 marks]Explain about Van- Der-Waals equation of state.
[7 marks]Discuss Virial equations and their applications.
[3 marks]Define the statements for the second law of thermodynamics i. Clausius Statement ii. Kelvin – Planck Statement
[4 marks]Discuss effect of temperature on heat of reaction and derive necessary equation.
[7 marks]Write a short note on Third law of thermodynamics.
[3 marks]Describe absorption refrigeration cycle.
[4 marks]Explain and prove Carnot’s principle with neat sketch.
[7 marks]Write a short note on Jet ejector.
[3 marks]Using Maxwell’s equation prove that : dH = CpdT + V(1 – βT)dP Where β is coefficient of volume expansion1
[4 marks]Derive the expression for change in entropy when an ideal gas changes its state from (P , V , T ) to (P , V , T ) for following process- 1) Constant volume process. 2) Constant pressure process. 3) Isothermal process.
[7 marks]Assuming air is mixture of 21 % oxygen and 79% nitrogen by volume calculate entropy of 1 kmol air relative to pure oxygen and nitrogen, all at the same temperature and pressure.
[3 marks]Discuss briefly about single and multistage compressors.
[4 marks]What is the criterion of exactness? Using the criterion of exactness derive the Maxwell equation.
[7 marks]Discuss any three major desirable properties of good refrigerant.
[3 marks]Write a short note on Thermodynamic Diagrams.
[4 marks]Arefrigeration machine operating at a condenser temperature at 290 K needs 1 kW of power per ton of refrigeration. Determine: 1) Coefficient Of Performance(COP) 2) Heat rejected to the condenser 3) The lowest temperature that can be maintained. Given that: 1 Ton of refrigeration = 12660 kJ/h=3516.67 W
[7 marks]