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

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

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

3. 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

4. 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

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

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

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

8. Which one is true for a throttling process ?

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

10. First law of thermodynamics deals with the