Chemical Engineering Thermodynamics

Write a note on Gibbs free energy.

The equilibrium constant for the reaction at 297K is 1635. What will be the equilibrium constant at 273K if the heat of reaction in this temperature range is -6350 Cal/gmol. 

Derive the equation GO =  from the fundamentals.

Ethanol - Benzene system has a composition of 44.8 mol % ethanol with a boiling point ef 341.4K at 101.3kPa. At this temperature the vapor pressure of benzene is 68.9kPa and hat of ethanol is 67.4 kPa. What are the activity co-efficient in a solution containing 10% ethanol? Use Van Laar equation.

Write a short note on Margule's and Wilson equation.

Draw T-X - y and P-X-y diagrams for a binary mixture and mention their significance.

Derive Gibbs - Duhem equation from the fundamentals and discuss its uses.

Write a short note on Fugacity.

Define Chemical Potential. Explain the effect of temperature and pressure on chemical potential.

What are Partial Molar properties? Explain with various equations.

Explain Reversible and non-Reversible process, with examples

Ether Boils at 33.5°C at one atm pressure. Calculate its boiling point at 750 mmHg of pressure. Latent heat of vaporization = 88.4 cal/gm (Mole.wt of Ether = 74). 

Derive Gibbs - Helmholtz equation.

One kg of air at 1 bar and 15^oC is heated in a cylinder under constant pressure conditions to 150°C. Find the final volume, the work done and the changes in internal energy, enthalpy and entropy 

State and prove Clausius Inequality.

A certain quantity of air has a volume of 0.25m³ at a pressure of 15kPa and 25°C. It is compressed to a final volume of 23 according to the law PV^1.3  = const. Calculate the final temperature and work transfer during the above process. Also determine the final pressure in a constant. Volume process to reach back the initial temperature of 25°C. 

With a neat sketch, explain PV and PT diagram. 

 A fluid in a tank is stirred by a paddle driven by a 2 motor. Heat losses from the tank are 1576 kJ/hr. Does the intemal energy of the system which is 10kg of fluid in the tank increase or decreases 

Define the following:

ii) State and path function.

Define the following:

i) Extensive and Intensive property