“Dry ice” is________________?

Related Mcqs:

1. Sublimation temperature of dry ice (solid CO2) is ____________ °C?

   A. -273
   B. 0
   C. -78
   D. 5

2. The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at ______________ percent relative humidity ?

   A. 0
   B. 100
   C. 50
   D. None of these

3. Melting of ice exemplifies a/an______________________?

   A. Adiabatic process
   B. Endothermic reaction
   C. Exothermic reaction
   D. Process involving a chemical reaction

4. Melting of ice is an example of an _____________ process?

   A. Adiabatic
   B. Isothermal
   C. Isometric
   D. None of these

5. Degree of freedom of the system ice-water-vapour will be ________________?

   A. 0
   B. 1
   C. 2
   D. 3

6. Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole. °K___________________?

   A. 0
   B. ∞
   C. 50
   D. 100

7. When pressure is applied on the system, ice ↔ water, then_________________?

   A. Equilibrium cannot be established
   B. More ice will be formed
   C. More water will be formed
   D. Evaporation of water will take place

8. One ton of refrigeration is defined as the heat rate corresponding to melting of one ton of ice in one ________________?

   A. Hour
   B. Day
   C. Minute
   D. Second

9. The number of degrees of freedom for a mixture of ice and water (liquid) are ____________________?

   A. 3
   B. 2
   C. 1
   D. 0

10. Molar heat capacity of water in equilibrium with ice at constant pressure is_____________________?

    A. 0
    B. ∞
    C. 1
    D. None of these