40 TOP Chemical Engineering Thermodynamics Online Test – Multiple Choice Questions and Answers

1. First law of thermodynamics deals with the

 
 
 
 

2. A solute distributes itself between two non-miscible solvents in contact with each other in such a way that, at a constant temperature, the ratio of its concentrations in two layers is constant, irrespective of its total amount”. This is

 
 
 
 

3. For spontaneous changes in an isolated system (S = entropy)

 
 
 
 

4. For organic compounds, group contribution method can be used for the estimation of

 
 
 
 

5. When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is

 
 
 
 

6. A solid is transformed into vapour without going to the liquid phase at

 
 
 
 

7. Which one is true for a throttling process ?

 
 
 
 

8. Enthalpy changes over a constant pressure path are always zero for __________ gas

 
 
 
 

9. One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is

 
 
 
 

10. The work done in isothermal compression compared to that in adiabatic compression will be

 
 
 
 

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