Chemical Engineering MCQs

A. Enthalpy

B. Entropy

C. Pressure

D. None of these

A. At constant pressure

B. By throttling

C. By expansion in an engine

D. None of these

A. Free expansion of a gas

B. Compression of air in a compressor

C. Expansion of steam in a turbine

D. All of the above

A. Its internal energy (U) decreases and its entropy (S) increases

B. U and S both decreases

C. U decreases but S is constant

D. U is constant but S decreases

A. Less than

B. Equal to

C. More than

D. Either B or C; depends on the type of alloy

A. Zeroth

B. First

C. Second

D. Third

A. Air compressor

B. Lquid cooling system of an automobile

C. Boiler

D. None of these

A. Vapour pressure is relatively low and the temperature does not vary over wide limits

B. Vapour obeys the ideal gas law and the latent heat of vaporisation is constant

C. Volume in the liquid state is negligible compared with that in the vapour state

D. All of the above

A. Compressibility

B. Work done under adiabatic contition

C. Work done under isothermal condition

D. Co-efficient of thermal expansion

A. Entropy

B. Temperature

C. Internal energy

D. Enthalpy