IIT-JEE 2012 Paper 2 Offline | Heat and Thermodynamics Question 57 | Physics

IIT-JEE 2012 Paper 2 Offline

MCQ (Single Correct Answer)

-0.75

Two moles of ideal helium gas are in a rubber balloon at 30^oC. The balloon is fully expandable and can be assumed to require no energy in its expansion. The temperature of the gas in the balloon is slowly changed to 35^oC. The amount of heat required in raising the temperature is nearly (take R = 8.31 J/mol.K)

62 J

104 J

124 J

208 J

IIT-JEE 2012 Paper 1 Offline

MCQ (Single Correct Answer)

-0.75

A mixture of 2 moles of helium gas (atomic mass = 4 amu) and 1 mole of argon gas (atomic mass = 40 amu) is kept at 300 K in a container. The ratio of the rms speeds $$\left( {{{{v_{rms}}\left( {helium} \right)} \over {{v_{rms}}\left( {\arg on} \right)}}} \right)$$ is

0.32

0.45

2.24

3.16

IIT-JEE 2012 Paper 1 Offline

MCQ (Single Correct Answer)

-1

Three very large plates of same area are kept parallel and close to each other. They are considered as ideal black surfaces and have very high thermal conductively. The first and third plates are maintained at temperatures 2T and 3T, respectively. The temperature of the middle (i.e. second) plate under steady state condition is

$${\left( {{{65} \over 2}} \right)^{1/4}}T$$

$${\left( {{{97} \over 4}} \right)^{1/4}}T$$

$${\left( {{{97} \over 2}} \right)^{1/4}}T$$

$${(97)^{1/4}}T$$

IIT-JEE 2011 Paper 2 Offline

MCQ (Single Correct Answer)

-1

One mole of a monatomic gas is taken through a cycle ABCDA as shown in the PV diagram. Column II give the characteristics involved in the cycle. Match them with each of the processes given in Column I.

IIT-JEE 2011 Paper 2 Offline Physics - Heat and Thermodynamics Question 35 English

	Column I		Column II
(A)	Process A$$ \to $$ B	(P)	Internal energy decreases.
(B)	Process B$$ \to $$C	(Q)	Internal energy increase.
(C)	Process C$$ \to $$D	(R)	Heat is lost.
(D)	Process D$$ \to $$A	(S)	Heat is gained.
		(T)	Work is done on the gas.

(A)$$\to$$(P), (R), (T); (B)$$\to$$(P), R; (C)$$\to$$(Q), (S); (D)$$\to$$(R), (T)

(A)$$\to$$(P), (T); (B)$$\to$$(P), (R); (C)$$\to$$(Q), (S); (D)$$\to$$(R)

(A)$$\to$$(R), (T); (B)$$\to$$(P), (R); (C)$$\to$$(S); (D)$$\to$$(R), (T)

(A)$$\to$$(P), (R), (T); (B)$$\to$$(P), (R); (C)$$\to$$(Q); (D)$$\to$$(R), (T)

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