2022
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Jul 7, 2022
Directions : Read the following information and answer the questions given below it Six students A, B, C, D, E...
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Jul 7, 2022
Q. In a cricket season, India defeated Australia twice, West Indies defeated India twice, Australia defeated West Indies twice, India...
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Jul 7, 2022
Directions : Study the following information and answer the questions given below it: (i) Kailash, Govind and Harinder are intelligent....
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Jul 7, 2022
Directions Study the following information carefully to answer the given questions: Madan and Rohit are in the same team of...
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Jul 7, 2022
T1 and T2 has an efficiency η, the new efficiency if both the source and sink temperature are doubled, will...
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Jul 7, 2022
Directions : Read the following information carefully and answer the question given below: ਹੇਠ ਲਿਖੀ ਜਾਣਕਾਰੀ ਨੂੰ ਧਿਆਨ ਨਾਲ ਪੜ੍ਹੋ...
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Jul 7, 2022
(a) 100 J (b) 300 J (c) 500 J (d) 700 J Answer-c (15)
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Jul 7, 2022
(a) 227°C (b) 327°C (c) 127°C ...
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Jul 7, 2022
T1 and sink temperature is T2 will be (a) (T1 – T2)/ T1 ...
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Jul 7, 2022
(a) 80 K, 60 K (b) 100 K, 80 K (c) 60 K, 40 K ...
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Jul 7, 2022
(a) Isothermal expansion (b) Adiabatic expansion (c) Isothermal compression (d) Adiabatic compression Answer-a (22)
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Jul 7, 2022
3×106 cal. of heat from a reservoir at 627°C, and gives it to a sink at 27°C. The work done...
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Jul 7, 2022
(a) Second law of thermodynamics (b) Conservation of momentum (c) Conservation of mass (d) First law of thermodynamics...
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Jul 7, 2022
(a) Prevent radiation (b) Find ideal sources (c) Reach absolute zero temperature (d) Eliminate friction Answer-c (8)
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Jul 7, 2022
(a) 1.73 : 1 (b) 1 : 1.73 (c) 1 : 1 ...
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Jul 7, 2022
(a) It is impossible (b) It is possible but less probable (c) It is quite probable (d) Data are...
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Jul 7, 2022
(a) 1000 K (b) 960 K (c) 846 K ...
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Jul 7, 2022
(a) Isobaric (b) Isotropy (c) Enthalpy (d) Entropy Answer-d (10)
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Jul 7, 2022
(a) 1/3 ...
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Jul 7, 2022
(a) 50% (b) 24% (c) 0.75% ...
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Jul 7, 2022
T2=0°C and T1=200°C its efficiency is η1 and when T1=0°C and T2=200°C , Its efficiency is η2 , then what is η1...
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Jul 7, 2022
(a) 300 K (b) 400 K (c) 500 K ...
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Jul 7, 2022
(a) Q / 4 (b) Q / 3 (c) Q / 2 (d) 2Q / 3 Answer-b (3)
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Jul 7, 2022
(a) Isothermal (b) Adiabatic (c) Isobaric (d) None...
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Jul 7, 2022
27°C has a movable piston which maintains at constant pressure in container of 1 atm. The gas is compressed until...
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Jul 7, 2022
(a) T2 =273K (b) T2 =0 K (c) T1 =273K (d) T1...
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Jul 7, 2022
(a) 127°C (b) 227°C (c) 327°C (d) 673°C Answer-b (7)
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Jul 7, 2022
6 × 104 J at high temperature. The amount of heat converted into work is …. (a) 4.8 × 104 J...
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Jul 7, 2022
(a) Zero (b) Equal to heat given to the system (c) More than the heat given to system (d) Independent...
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Jul 7, 2022
(a) In the whole cycle of the system, the loss of any type of heat energy should be zero...
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Jul 7, 2022
(a) Adiabatic process (b) Joule-Thomson expansion (c) Ideal isothermal process (d) None of the above Answer-b (13)
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Jul 7, 2022
(a) Increases (b) Decreases (c) Remains constant (d) Becomes zero Explanation-(c) Internal energy is a state function. (12)
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Jul 7, 2022
(a) Room is cooled (b) Room is heated (c) Room is either cooled or heated (d) Room is neither cooled...
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Jul 7, 2022
(a) 10 (b) 1 (c) 9 (d) 0 Answer-c (5)
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Jul 7, 2022
(a) 1800 J/cycle (b) 1000 J/cycle (c) 2000 J/cycle (d) 1600 J/cycle Answer-d (4)
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Jul 7, 2022
(a) ΔQ = ΔU (b) ΔW = ΔU (c) ΔQ = ΔW (d) ...
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Jul 7, 2022
(a) In an isobaric process, ΔP =0 (b) In an isochoric process, ΔW = 0 (c) In an isothermal process,...
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Jul 7, 2022
if T1 = 270C and T2 = 1270C , then P1/P2 will be equal to (a) 9 / 59 (b) ...
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Jul 7, 2022
(a) Isobaric (b) Isothermal (c) Adiabatic (d) Isochoric Ans. d (7)