Choose the correct option related to the specific heat at constant volume CV -

(1) CV=12fR              (2) CV=Rγ-1

(3) CV=CPγ                (4) All of these

Concept Questions :-

Specific heat
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The curve between absolute temperature and vrms2 is:

(a)        

(b) 

(c)          

(d) 

Concept Questions :-

Types of velocity
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Five molecules of a gas have speeds, 1, 2, 3, 4 and 5 kms-1.  The value of the root mean square speed of the gas molecules is:

(1) 3 kms-1             (2) 11kms-1

(3) 12πkms-1    (4) 3.5 kms-1

Concept Questions :-

Types of velocity
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The average velocity of an ideal gas molecule is:                                                                                                                   [OJEE 2010]

(1) proportional to T

(2) proportional to T2

(3) proportional to T3

(4) zero

Concept Questions :-

Types of velocity
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For a gas, RCV=0.67.  This gas is made up of molecules which are:                                                                   [JIPMER 2001, 02]

(1) Diatomic           (2) Mixture of diatomic and polyatomic molecules

(3) Monoatomic      (4) Polyatomic

Concept Questions :-

Specific heat
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At constant temperature, on increasing the pressure of a gas by 5% its volume will decrease by:          [MP PET 2002; Kerala 2006]

(1) 5%       (2) 5.26 %         (3) 4.26 %         (4) 4.76 %

Concept Questions :-

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At what temperature, is the root mean square speedof molecules of hydrogen is twice of that at STP?A 273 KB 546 KC 819 KD 1092 K

Concept Questions :-

Types of velocity
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At what temperature, is the root mean square velocity of gaseous hydrogen molecules equal to that of oxygen molecules at 47°C:[MP PET 1997, 2000; RPET 1999; AIEEE 2002; J & K CET 2004; Kerala PET 2010]

(1) 20 K           (2) 80 K           (3) - 73 K              (4) 3 K

Concept Questions :-

Types of velocity
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The average kinetic energy of a gas molecule can be determined by knowing:                                        [RPET 2000, MP PET 2010]

(1) The number of molecules in the gas

(2) The pressure of the gas only

(3) The temperature of the gas only

(4) None  of the above is enough by itself

Concept Questions :-

Kinetic energy of gas
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 Volume, pressure, and temperature of an ideal gas are V, P, and T respectively. If the mass of its molecule is m, then its density is [k=boltzmann's constant]

(a) mkT                              (b) PkT

(d)PkTV                             (d) PmkT

Concept Questions :-

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