Food Corporation of India (FCI) Application Fee For Others: Rs. 800/- (Excluding bank charges but including GST) For SC/ ST/ PWBD/ Women: Nil Payment Mode (Online): Through Debit Cards (RuPay/Visa/MasterCard/Maestro), Credit...
NEET Topper Interview
PUBLIC NOTICE 25 August 2022 Sub: Information Regarding Challenge of Provisional Answer Key, Display of Scanned Images of OMR Answer...
The molar heat capacity in a process of a diatomic gas if it does a work of Q/4 when a heat of Q is supplied to it is
(a) (2/5)R (b) (5/2)R (c) (10/3)R ...
11. A cylindrical tube of uniform cross-sectional area A is fitted with two air tight frictionless pistons.
temperature is T0, atmospheric pressure is also P0. Now the temperature of the gas is increased to 2T0, the tension...
10. Work done by a system under isothermal change from a
volume V1 to V2 for a gas which obeys Vander Waal's equation (V - βn)[ P + (αn2/v)= nRT (a) ...
8. A gas mixture consists of 2 moles of oxygen and 4 moles argon at temperature T. Neglecting all vibrational modes, the total internal energy of the system is
(a) 4 RT (b) 15 RT (c) 9 RT (d) 11 RT Ans. d
15. The temperature of a hypothetical gas increases to √2 times when compressed adiabatically to half the volume. Its equation can be written as
(a) PV3/2 = constant (b) PV5/2 = constant (c) PV7/3 = constant (d) PV4/3= constant Answer-a
14. The volume of air increases by 5% in its adiabatic expansion. The percentage decrease in its pressure will be
(a) 5% (b) 6% (c) 7% (d) 8% Answer-c
11. A cylindrical tube of uniform cross-sectional area A is fitted with two air tight frictionless pistons. The pistons are connected to each other by a metallic wire. Initially the pressure of the gas is
P0 and temperature is T0, atmospheric pressure is also P0. Now the temperature of the gas is increased to 2T0,...
10. Work done by a system under isothermal change from a volume
V1 to V2 for a gas which obeys Vander Waal's equation (V-βn)[P+(αn2/V)]=nRT (a) nRT loge [ (V2-nβ)/( V1-nβ) ]+αn2[(V1 -...
9. An ideal gas expands isothermally from a volume
V1 to V2 and then compressed to original volume V1 adiabatically. Initial pressure is P1 and final pressure is P3...
8. A gas mixture consists of 2 moles of oxygen and 4 moles argon at temperature T. Neglecting all vibrational modes, the total internal energy of the system is
(a) 4 RT (b) 15 RT (c) 9 RT (d) 11 RT Answer-d
A closed hollow insulated cylinder is filled with gas
at 00C and also contains an insulated piston of negligible weight and negligible thickness at the middle point. The gas...
5. A monoatomic ideal gas, initially at temperature
T1, is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a...
4. Two identical containers A and B with frictionless pistons contain the same ideal gas at the same temperature and the same volume V.
The mass of the gas in A is mB and that in B is . The gas in each cylinder...
34. Which of the following processes is reversible
(a) Transfer of heat by radiation (b) Electrical heating of a nichrome wire (c) Transfer of heat by conduction (d) ...
3. During the melting of a slab of ice at 273 K at atmospheric pressure
(a) Positive work is done by ice-water system on the atmosphere (b) Positive work is done on the ice-water system...
2. 1cm3 of water at its boiling point absorbs 540 calories of heat to become steam with a
volume of 1671 cm3 .If the atmospheric pressure = 1.013 x 105 N/m3 and the mechanical equivalent of heat =...
33. An ideal gas heat engine operates in Carnot cycle
between 227°C and 127°C. It absorbs 6 x 104 cals of heat at higher temperature. Amount of heat converted to...
32. An engine is supposed to operate between two reservoirs
at temperature 727°C and 227°C. The maximum possible efficiency of such an engine is (a) 1/2 (b) 1/4 (c) ...
31. In a mechanical refrigerator, the low temperature coils are at a temperature
of – 23°C and the compressed gas in the condenser has a temperature of 27°C. The theoretical coefficient of performance...
30. An ideal refrigerator has a freezer at a temperature of
-130c . The coefficient of performance of the engine is 5. The temperature of the air (to which heat is...
Admin earns scholarship
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua
Forensic team earns several
Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy...