Home
Class 12
PHYSICS
If the specific heat of helium at consta...

If the specific heat of helium at constant volume is 12.6 J/mol K, then the specific heat of hydrogen at constant volume in J/mol K will be

A

12.6

B

16.8

C

18.9

D

21

Text Solution

Verified by Experts

The correct Answer is:
D
Helium is monatomic gas
`thereforeC_(V)=(3)/(2)R `
Hydrogen is diatomic gas
`C_(V)=(5)/(2)R`
`therefore (C_(vd))/(C_(vm))=(5)/(2)`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Thermodynamics)|56 Videos

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Absorption, reflection and transmission of heat radiation)|65 Videos

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Presure exerted by the gas molecule and kinetic energy)|91 Videos

  • INTERFERENCE AND DIFFRACTION

    NIKITA PUBLICATION|Exercise MULTPLE CHOICE QUESTIONS|333 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    NIKITA PUBLICATION|Exercise MCQs (Sensitivity and accuracy of M.C.G.)|1 Videos

Similar Questions

Explore conceptually related problems

The specific heat of Argon at constant volume is 0.3122 kJ/kg/K. Find the specific heat of Argon at constant pressure if R=8.314 kJ/k mole K. (Molecular weight of argon=39.95)

If the specific heat of a gas at constant volume is 3/2R , then the value of gamma will be

The specific heat of air at constant pressure is 1.005 kJ//kg//K and the specific heat of air at constant volume is 0.718 kJ//kg//K . If the universal gas constant is 8.314 kJ//k mole K find the molecular weight of air ?

Calculate the molar specific heat at constant volume . Given : specific heat of hydrogen at constant pressure is 6.85 "cal" mol^(-1) K^(-1) and density of hydrogen = 0.0899 "g" cm^(-3) . One mole of gas = 2.016g, J=4.2xx10^(7) "erg" cal^(-1) and 1 atmosphere = 10^(6) "dyne" cm^(-2) .

The volume of 1kg of oxygen gas at NPT is 0.7m^(3) . Specific heat of oxygen at constant volume is 653 Jkg^(-1)k^(-1) . The specific heat of oxygen at constant pressure in Jkg^(-1)k^(-1) is (atmospheric pressure 10^(5) Pa)

The volume of 1kg of hydrogen gas at N.T.P. is 11.2m^(3) . Specific heat of hydrogen at constant volume is 100.6J kg .^(-1)K^(-1) . Find the specific heat at constant pressure in Jkg.^(-1)K^(-1) ?

The specific heat of a gas constant volume is 20 J/mol K. when two moles of such gas is heated through 10^(@)C at constant pressure, what is the increase in thernal energy and work done? (R=8 J/mol K)

If the difference the two specific heats of triatomic gas is 500 J/ kg K. then the principal specific heat of a gas constant volume c_(v) in J/kg K. (gamma=4//3)

The ratio of the molar specific heats of a gas is 1.41, if the molar specific heat of the gas at constant volume is 4.846 kcal/kmol-K universal gas constant has the value

NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Degrees of freedom and law of equipartition of energy & Application of specific hest capacities of gases)
  1. If one mole of a monatomic gas (gamma=5/3) is mixed with one mole of a...

    Text Solution

    |

  2. How much heat energy in joules must be supplied to 14gms of nitrogen a...

    Text Solution

    |

  3. If the specific heat of helium at constant volume is 12.6 J/mol K, the...

    Text Solution

    |

  4. 743 J of heat energy is needed to raise the temperature of 5 moles of ...

    Text Solution

    |

  5. 70 calories of heat required to raise the temperature of 2 moles of an...

    Text Solution

    |

  6. The specific heat of hydrogen gas at constant pressure is C(P)=3.4xx10...

    Text Solution

    |

  7. If for a gas, (R)/(CV)=0.67, the gas is

    Text Solution

    |

  8. If 294 joules of heat energy is required to raise the temperature of 2...

    Text Solution

    |

  9. One mole of mono atomic gas is mixed with 2 moles of diatomic gas. Wha...

    Text Solution

    |

  10. If the specific heat of lead is 0.03 cal/gm, then the thermal capacity...

    Text Solution

    |

  11. Ratio of thermal capacities of two copper spheres of radii 5 cm and 10...

    Text Solution

    |

  12. The molar specific heat of a gas at constant volume is 24 J/mol K. the...

    Text Solution

    |

  13. 5' moles of oxygen is heated at constant volume from 10^(@)C to 20^(@)...

    Text Solution

    |

  14. If the difference between the principal specific heats of nitrogen is ...

    Text Solution

    |

  15. One mole of an ideal monoatomic gas is heated at a constant pressure o...

    Text Solution

    |

  16. The change in internal energy when 5 mole of hydrogen is heated to 20^...

    Text Solution

    |

  17. The difference between the principal specific heats of nitrogen is 300...

    Text Solution

    |

  18. For a gas, C(P)-C(V)=5000J//kg" "K, if the ratio of principal specific...

    Text Solution

    |

  19. Ifc(p) and c(v) are the principal specific heats of an ideal gas in ca...

    Text Solution

    |

  20. For hydrogen gas C(P)-C(V)=alpha and for Oxygen gas C(P)-C(V)=b, where...

    Text Solution

    |