Physics
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Jul 7, 2022
(a) Pressure only (b) Volume only (c) Pressure, volume and temperature (d) Number of moles Ans. c (12)
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Jul 7, 2022
(a) More for (i) (b) More for (ii) (c) Same in both cases (d) Independent of number of moles Ans....
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Jul 7, 2022
(a) 18J (b) 9J (c) 4.5J (d) 36J...
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Jul 7, 2022
(a) 19.1 kJ (b) 12.5 kJ (c) 25 kJ (d) Zero Ans. a (10)
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Jul 7, 2022
(a) 19.1 kJ (b) 12.5...
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Jul 7, 2022
at constant pressure 2.1 x 105N/m2 , there was an increase in its volume equal to 2.5 x 10-3 m3....
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Jul 7, 2022
(a) Zeroth law of thermodynamics (b) First law of thermodynamics (c) Second law of thermodynamics (d) Newton’s law of cooling...
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Jul 7, 2022
to that at constant volume is γ, the change in internal energy of a mass of gas, when the volume...
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Jul 7, 2022
(a) Its temperature will increase (b) Its temperature will decrease (c) Its temperature will remain constant (d) None of these...
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Jul 7, 2022
(a) Increases by 600 J (b) Decreases by 800 J (c) Increases by 800 J (d) Decreases by 50 J...
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Jul 7, 2022
(a) 7 : 6 (b) 6 : 7...
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Jul 7, 2022
(a) Kinetic energy only (b) Kinetic and potential energy (c) Potential energy (d) None of these Ans. a (5)
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Jul 7, 2022
(a) P (b) T (c) V (d) R Ans. d (10)
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Jul 7, 2022
(a) Enthalpy (b) Work done (c) Gibb’s energy (d) Internal energy Ans. b (13)
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Jul 7, 2022
(a) 150 J (b) 70 J (c) 110 J (d) 40 J Ans. b (6)
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Jul 7, 2022
1m3 is divided into two equal compartments by a partition. One of these compartments contains an ideal gas at 300...
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Jul 7, 2022
Δw when an amount of heat is ΔQ added to the system, the corresponding change in the internal energy is...
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Jul 7, 2022
(a) 7900 J (b) 8200 J (c) 5600 J (d) 6400 J Ans. a (7)
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Jul 7, 2022
of one atmosphere from 00c to 1000c . Then the change in the internal energy is (a) 6.56 joules (b)...
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Jul 7, 2022
(a) 0.56×104 J (b) 1.3×102 J (c) 2.7×102 J ...
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Jul 7, 2022
(a) 4.6×103 K (b) 11.6×103 K (c) 23.2×103 K (d) 7.7×103...
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Jul 7, 2022
(a) Newton’s law (b) Law of conservation of energy (c) Charle’s law (d) Law of heat exchange Ans. b (6)
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Jul 7, 2022
(a) (3/2)kT (b) kT...
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Jul 7, 2022
(a) Only potential energy (b) Only kinetic energy (c) Potential and kinetic energy both (d) None of the above Answer-b...
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Jul 7, 2022
(a) Temperature (b) Energy (c) Work (d) None of these Ans. a (11)
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Jul 7, 2022
T1 and T2 are mixed. There is no loss of energy. The masses of the molecules are m1 and m2...
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Jul 7, 2022
(a) 2×√3R×300 gm×cm/sec (b) 2×3×R×300 gm×cm/sec (c) 1×√3R×300 gm×cm/sec (d) Zero Answer-d (13)
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Jul 7, 2022
(a) 30 J (b) 20 J (c) 60 J ...
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Jul 7, 2022
(a) P (b) < P (c) >...
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Jul 7, 2022
(a) Increase continuously (b) Decreases continuously (c) First increases and then decreases (d) First increase and then becomes constant Answer-c...
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Jul 7, 2022
CO2 mixture at 27°C. If R = 8.31 J/mole kelvin, then the pressure in the vessel in N/m2 will be (approx.)...
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Jul 7, 2022
(a) The internal energy changes in all processes (b) Internal energy and entropy are state functions (c) The change in...
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Jul 7, 2022
(a) 100 J (b) 3000 J (c) 450 J ...
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Jul 7, 2022
(a) Transfer momentum to the walls (b) Momentum becomes zero (c) Move in opposite directions (d) Perform Brownian motion Answer-a...
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Jul 7, 2022
(a) Volume (b) Temperature (c) Pressure (d) Work Ans. d (6)
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Jul 7, 2022
is Cp=3.4 x 103 cal/kg 0c and at constant volume is Cv= 2.4 x103 cal/kg 0c. If one kilogram hydrogen...
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Jul 7, 2022
(a) The temperature will decrease (b) The volume will increase (c) The pressure will remain constant (d) The temperature will...
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Jul 7, 2022
(a) Pressure and volume (b) Volume and temperature (c) Temperature and pressure (d) Any one of pressure, volume or temperature...
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Jul 7, 2022
(a) Q=W=0 and ΔEint =0 (b) Q=0,W>0 and ΔEint =-W (c) W=0,Q>0, and ΔEint = Q (d) W>0,Q<0 ...