Critical temperature is defined as the temperature above which a gas will____________________?

Related Mcqs:

1. On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will____________________?

   A. Increase B. Decrease C. Remain same D. Increase in summer and will decrease in winter...

2. A gas can be liquefied by pressure alone only, when its temperature is _____________ its critical temperature?

   A. Less than B. More than C. Equal to or higher than D. Less than or equal to...

3. Critical solution temperature (or the con-solute temperature) for partially miscible liquids (e.g., phenol-water) is the minimum temperature at which___________________?

   A. A homogeneous solution (say of phenol water) is formed B. Mutual solubility of the two liquids shows a decreasing trend C. Two liquids are completely separated into two layers D. None of these...

4. Any substance above its critical temperature exists as _____________________?

   A. Saturated vapour B. Solid C. Gas D. Liquid...

5. Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is ___________________?

   A. 0 B. ∞ C. +ve D. -ve...

6. The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume predicted by ideal gas law)____________________?

   A. V1/V2 B. V2/V1 C. V1 – V2 D. V1.V2...

7. The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?

   A. Critical B. Boyle C. Inversion D. Reduced...

8. The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________?

   A. 2M B. M/2 C. M D. M/4...

9. Cp of a gas at its critical temperature and pressure_______________?

   A. Becomes zero B. Becomes infinity C. Equals 1 kcal/kmol °K D. Equals 0.24 kcal/kmol °K...

10. The temperature of a gas in a closed container is 27° C. If the temperature of the gas is increased to 300° C, then the pressure exerted is___________________?

    A. Doubled B. Halved C. Trebled D. Unpredictable...