Home
Class 12
CHEMISTRY
Which gas is most dense at 1 atm and 298...

Which gas is most dense at 1 atm and 298 K ?

A

`CO (g)`

B

`CO_(2) (g)`

C

`SO_(3) (g)`

D

`Cl_(2) (g)`

Text Solution

Verified by Experts

The correct Answer is:
C
`d = (PM)/(RT)`
`d prop M`
`CO rarr 28`
`CO_(2) rarr 44`
`SO_(3) rarr 80`
`Cl_(2) rarr 71`
`SO_(3)` will be more dense
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A and B are two idential vessels. A contains 15 g ethane at 1 atm and 298 K . The vessel B contains 75 g of a gas X_(2) at same temperature and pressure. The vapour density of X_(2) is :

Calculate the energy required to excite two line of hydrogen gas at 1 atm and 298K to the first excited state of atomic hydrogen .The energy fior the disociation of H_(2) bond of photon to break this bond

Density of an ideal gas at 298K and 1.0atm is found to be 1.25kgm^(-3) .Density of the gas at 1.5 atm and at 298K is :

The compressibillity of a gas is greater than unity at 1 atm and 273 K. Therefore :

A gas originally at 1.10atm and 298K underwent a reversible adiabatic expansion to 1.00atm and 287K . What is the molar heat capacity of the gas?

Calculated the energy required to excite one litre of hydrogen gas at 1atm and 298K to the first excited state of atomic hydorgen. The enegry for the dissociation of H-H bond is 436 kJ mol^(-1) .

BANSAL-TEST PAPERS-CHEMISTRY
  1. What will be the % labelling of oleum containing 40% SO(3) by mass ?

    Text Solution

    |

  2. In which of the following, d(x^(2) - y^(2)) orbital is not participate...

    Text Solution

    |

  3. Which gas is most dense at 1 atm and 298 K ?

    Text Solution

    |

  4. Which of the following has total 5 lone pair electron in molecule ?

    Text Solution

    |

  5. A certain compound contain 16% oxgyen and 4% sulphur by mass. Find min...

    Text Solution

    |

  6. Number of sigma and pi bonds present in :

    Text Solution

    |

  7. Air contain 20 % oxygen by volume. Calculate the theoretical volume of...

    Text Solution

    |

  8. How many maximum number of atoms are present in single plane of Al(CH(...

    Text Solution

    |

  9. For fixed mass of an ideal gas a constant temperature. Which is correc...

    Text Solution

    |

  10. Which of the following statement is not true.

    Text Solution

    |

  11. If following reaction is started with 6 gm of H(2) and 14 gm of N(2) t...

    Text Solution

    |

  12. The correct order of boiling point among the following.

    Text Solution

    |

  13. Concentration of SO(4)^(2-) ions in a solution prepared by mixing 100 ...

    Text Solution

    |

  14. In the solid state of Cl(2)O(6), the following statement is incorrect ...

    Text Solution

    |

  15. Which of the following gases will have hightest average molecular spee...

    Text Solution

    |

  16. Consider the following statements: (I) Li^(+) (aq) is greater in siz...

    Text Solution

    |

  17. In the following reaction : CaC(2) (s) + 2H(2) O (l) rarr C(2) H(2) ...

    Text Solution

    |

  18. Select which has maximum formal charge on central atom :

    Text Solution

    |

  19. A 50 gm oleum sample labelled as 104.5% will have mass of SO(3)

    Text Solution

    |

  20. In the modern periodic table the maximum number of elements are presen...

    Text Solution

    |