Home
Earn $100 Online Daily. Work From Home. Click Here

What is the correct answer?

4

A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system

A. its internal energy (U) decreases and its entropy (S) increases

B. U and S both decreases

C. U decreases but S is constant

D. U is constant but S decreases

Share this question with your friends
Correct Answer :

B. U and S both decreases


Related Questions

For an incompressible fluid, the __________ is a function of both pressure… The third law of thermodynamics states that the One ton of refrigeration is defined as the heat rate corresponding to… Water on heating from 1 to 4°C Solid and liquid phases of a substance are in equilibrium at the Entropy, which is a measure of the disorder of a system, is: Solubility of a substance which dissolves with an increase in volume and… A closed system is cooled reversibly from 100°C to 50°C. If no… The expression for entropy change given by, ΔS = nR ln (V2/V1) +… A liquid under pressure greater than its vapour pressure for the temperature… Van Laar equation deals with the activity coefficients in Specific/molar Gibbs free energy for a pure substance does not change… __________ law of thermodynamics ascertains the direction of a particular… A refrigerator may be termed as a The equation, PV = nRT, is best obeyed by gases at Melting of ice exemplifies a/an Lenz's law results from the law of conservation of Internal energy change of a system over one complete cycle in a cyclic… Those solutions in which there is no volume change upon mixing the components… Grams of butane (C4H10) formed by the liquefaction of 448 litres of the… Co-efficient of performance for a reversed Carnot cycle working between… The partial molar enthalpy of a component in an ideal binary gas mixture… Pick out the wrong statement. Pick out the wrong statement Which of the following will increase the volume of a real gas by four… If the molar heat capacities (Cp or Cv) of the reactants and products… Work done may be calculated by the expression ∫ p dA for __________… Pick out the correct statement. A system in which there is exchange of energy but not of mass, is called… Claude's liquefaction process employs the cooling of gases by

Also checkout

Refrigeration & Air-Conditioning MCQ Change of State MCQ Order & Ranking MCQ Rearrangement Set 12 MCQ Metallurgical Operations MCQ Nervous System MCQ Java Programming MCQ Simplification MCQ Construction Planning and Management MCQ Algae MCQ H.C.F and L.C.M MCQ Chemical Engineering Plant Economics MCQ