Melting of ice is an example of an _____________ process?

Related Mcqs:

1. Melting of ice exemplifies a/an______________________?

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

2. 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

3. Change of state namely evaporation condensation, freezing and melting is an _______________ process?

   A. Isothermal
   B. Adiabatic
   C. Isobaric
   D. Isochoric

4. Melting of wax is accompanied with ______________ in entropy?

   A. Increase
   B. Decrease
   C. No change
   D. None of these

5. 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

6. The melting point of paraffin wax (which contracts on solidification) _______________ with pressure rise?

   A. Increases
   B. Decreases
   C. Remains unchanged
   D. Decreases linearly

7. “Dry ice” is________________?

   A. Moisture free ice
   B. Solid helium
   C. Solid carbon dioxide
   D. None of these

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

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

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

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

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

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