Disappearance of snow in subzero weather exemplifies the process of_________________?

Related Mcqs:

1. Which of the following exemplifies an adiabatic process ?

   A. Melting of ice B. Condensation of alcohol vapor C. Sudden bursting of a cycle tube D. Evaporation of water...

2. Melting of ice exemplifies a/an______________________?

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

3. Atmospheric pressure corresponds to a hydrostatic head of_________________?

   A. 13.6 cms of Hg B. 34 ft ofH2O C. 1 metre of H2O D. 13.6 metres of Hg...

4. The heat change for the reaction, C(s) + 2S(s) → CS2(l), is 104.2 kJ. It represents the heat of_________________?

   A. Formation B. Solution C. Combustion D. Fusion...

5. Mass number of an atom is the sum of the numbers of_________________?

   A. Neutrons and protons B. Protons and electrons C. Neutrons and electrons D. Both A. & B....

6. The first law of thermodynamics is a restatement of the law of conservation of_________________?

   A. Mass B. Energy C. Momentum D. None of these...

7. Isobaric process means a constant process ?

   A. Temperature B. Pressure C. Volume D. Entropy...

8. A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively) ?

   A. Δ S1 is always Δ SR C. Δ S1 is always > Δ SR D. Δ S1 is always = Δ SR...

9. Throttling process is a/an _____________ process?

   A. Reversible and isothermal B. Irreversible and constant enthalpy C. Reversible and constant entropy D. Reversible and constant enthalpy...

10. Throttling (Joule-Thomson effect) process is a constant _____________ process?

    A. Enthalpy B. Entropy C. Pressure D. None of these...