A large iceberg melts at the base, but not at the top, because of the reason that_________________?

Related Mcqs:

Which of the following is an undesirable characteristic of a refrigerant ?

A. It should be non-explosive B. It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils C. Its vapor pressure at the condenser temperature should be very high D. None of these...

Enthalpy changes over a constant pressure path are always zero for ______________ gas?

A. Any B. A perfect C. An easily liquefiable D. A real...

Pick out the wrong statement ?

A. The chemical potential of a pure substance depends upon the temperature and pressure B. The chemical potential of a component in a system is directly proportional to the escaping tendency of that component C. The chemical potential of ith species (μi) in an ideal gas mixture approaches zero as the pressure or mole fraction … Pick out the wrong statement ?Read More...

Heat of formation of an element in its standard state is___________________?

A. 0 B. 0 D. A function of pressure...

Specific ____________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.)?

A. Entropy B. Internal energy C. Enthalpy D. Gibbs free energy...