Physics
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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)
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Jul 7, 2022
(a) Isothermal process (b) Adiabatic process (c) Isochoric process (d) None of these Ans. c (8)
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Jul 7, 2022
(a) Conduction of heat from a hot reservoir to a cold reservoir (b) Conversion of heat into work isobarically (c) ...
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Jul 7, 2022
(a) 28 joule (b) 27 joule (c) 25 joule ...
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Jul 7, 2022
(a) -√γ ΔV/V (b) -ΔV/V (c) ...
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Jul 7, 2022
(a) –166 J (b) 166 J (c) –168 J ...
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Jul 7, 2022
V1 to V2 . The amount of work done by the gas is greatest when the expansion is (a) Isothermal ...
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Jul 7, 2022
(a) Adiabatic < Isothermal < Isobaric (b) Isobaric < Adiabatic < Isothermal (c) Adiabatic < Isobaric < Isothermal (d) None...
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Jul 7, 2022
(a) Temperature (b) Pressure (c) Heat (d) Temperature and pressure Explanation-(c) In adiabatic process, no heat transfers between system and...
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Jul 7, 2022
V1 is completely changed into a gas of volume V2 at a constant external pressure P and temperature T. If...
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Jul 7, 2022
(a) 540 ml (b) 350 ml (c) 280 ml (d) 135 ml Answer-c (20)
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Jul 7, 2022
Vo at 27°C. It is heated at constant pressure so that its volume becomes 2Vo. The final temperature is (a) 54°C ...
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Jul 7, 2022
2×10-3 m3 to 3.34 m3. The work done by the system is about (a) – 340 kJ (b) – 170...
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Jul 7, 2022
0.25m3 at constant pressure 103 N/m2 , the work done is (a) 2.5 ergs (b) 250 J (c) 250 W ...
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Jul 7, 2022
(R = 2 cal mol–1 oC–1) (a) 54 cal (b) 600 cal (c) 60 cal (d) 546 cal Answer-c...
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Jul 7, 2022
(a) 2×104 joules (b) 2×100 joules (c) 2×105×100 joules (d) 2×10–5×100 joules Answer-a (11)
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Jul 7, 2022
50 N/m2 from a volume of 10m3 to a volume of 4m3 . Energy of 100 J then added to the...
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Jul 7, 2022
(a) The work is done by the gas (b) Internal energy of the gas increases (c) Both (a) and (b)...
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Jul 7, 2022
V1 to V2. The work done by the gas is (a) P(V2-V1) ...
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Jul 7, 2022
2.1×105N/m2. What will be its isothermal modulus of elasticity[(Cp/Cv)=1.4] (a) 1.8×105N/m2 (b) 1.5×105N/m2 (c) ...
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Jul 7, 2022
(a) Zero (b) 100J (c) – 50J (d) 50J Answer-d (11)
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Jul 7, 2022
(a) 350×40.4 K (b) 300×40.4 K (c) 150×40.4 K (d) ...
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Jul 7, 2022
(a) 1 : 16 (b) 1 : 8 (c) 1 : 4 ...
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Jul 7, 2022
(a) Lesss than P (b) More than P (c) P (d) Either (a) or (c) Answer-b (9)
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Jul 7, 2022
(a) ΔU=-W in an adiabatic process (b) ΔU=W in an isothermal process (c) ΔU=-W in an isothermal process (d) ΔU=W...
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Jul 7, 2022
(a) Adiabatic expansion (b) Adiabatic compression (c) Isothermal expansion (d) Isothermal compression Answer-b (5)
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Jul 7, 2022
105 N/m2 . On suddenly pressing the piston the volume is reduced to half the initial volume. The final pressure...