Home
Class 11
CHEMISTRY
The kinetic energy of 4 mol of nitrogen...

The kinetic energy of `4 mol` of nitrogen gas at `127^(@) C` is …….. `cal(R = 2 cal mol^(-1) K^(-1))`

A

`4400`

B

`3200`

C

`4800`

D

`1524`

Text Solution

Verified by Experts

The correct Answer is:
C
According to the kinetic molecular theory , kinetic energy `(KE)` for `n` moles is given as
`KE = (3)/(2) nRT`
`= (3)/(2) (4 "mol") (2 "cal mol"^(-1) K^(-1)) (400 K)`
`= 4800 cal`
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER

    R SHARMA|Exercise Question Bank Level - IV|6 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    R SHARMA|Exercise Archives|26 Videos

  • STRUCTURE OF ATOM

    R SHARMA|Exercise ARCHIVES|55 Videos

Similar Questions

Explore conceptually related problems

Find the kinetic energy of 1 g of nitrogen gas at 77^(@)C . Given R=8.31" J "mol^(-1)K^(-1)

The kinetic energy for 14 g of nitrogen gas at 127^(@)C is nearly (mol. Mass of nitrogen = 28 and gas constant = 8.31 J/mol K)

The kinetic energy of 1 mole of oxygen molecules in cal mol^(-1) at 27^(0)C is

The mean kinetic energy of 1 kg-mol of nitrogen at 27^(@)C is 600 J . What will be its mean kinetic energy at 127^(@)C ?

The kinetic energy of two moles of N_(2) at 27^(@) C is (R = 8.314 J K^(-1) mol^(-1))

The molecular kinetic energy of 1 g of helium (molecular weight 4) at 127^(@)C is (Given , R =8.31 J"mol"^(-1)K^(-1) )

R SHARMA-STATES OF MATTER-ARCHIVES
  1. Molar volume of CO(2) is maximum at

    Text Solution

    |

  2. The rate of diffusion of a gas is proportional to

    Text Solution

    |

  3. The kinetic energy of 4 mol of nitrogen gas at 127^(@) C is …….. cal(...

    Text Solution

    |

  4. Absolute temperature is the temperature at which

    Text Solution

    |

  5. The process of converting vapor into liquid is known as

    Text Solution

    |

  6. 0.5 mol of H(2), SO(2), and CH(4) is kept in a container. A hole was m...

    Text Solution

    |

  7. A bottle of dry ammonia and a bottle of dry hydrogen chloride connecte...

    Text Solution

    |

  8. The kinetic energy of two moles of N(2) at 27^(@) C is (R = 8.314 J K^...

    Text Solution

    |

  9. Which is distilled first ?

    Text Solution

    |

  10. The rates of diffusion of gases A and B of molecular mass 36 and 64 ar...

    Text Solution

    |

  11. When the temperature is raise, the viscosity of liquid decreases, this...

    Text Solution

    |

  12. van der Waal's equation reduces itself to the ideal gas equation at

    Text Solution

    |

  13. If the four tubes of a car are filled to the same pressure with N(2),...

    Text Solution

    |

  14. If the average velocity of N(2) molecules is 0.3 ms^(-1) at 27^(@) C ,...

    Text Solution

    |

  15. The volume of 2.8 g of carbon monoxide at 27^(@) C and 0.821 atm press...

    Text Solution

    |

  16. The rms velocity of CO(2) at temperature T(in Kelvin) is x cm s^(-1). ...

    Text Solution

    |

  17. The temperature below which a gas does not obey ideal gas laws is

    Text Solution

    |

  18. Which of the following has maximum root mean square velocity at the sa...

    Text Solution

    |

  19. Equal volumes of gases at the same temperature and pressure contain eq...

    Text Solution

    |

  20. Use of hot air ballons in sports and meteorological observations in a...

    Text Solution

    |