Home
Class 12
CHEMISTRY
Calculate the half life of the first-ord...

Calculate the half life of the first-order reaction:
`C_(2)H_(4)O(g) rarr CH_(4)(g)+CO(g)`
The initial pressure of `C_(2)H_(4)O(g)` is `80 mm` and the total pressure at the end of `20 min` is `120 mm`.

A

40 min

B

120 min

C

20 min

D

80 min

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 65

    NTA MOCK TESTS|Exercise CHEMISTRY|25 Videos
  • NTA JEE MOCK TEST 67

    NTA MOCK TESTS|Exercise CHEMISTRY|25 Videos

Similar Questions

Explore conceptually related problems

For the first order reaction 2N_(2)O_(5)(g) rarr 4NO_(2)(g) + O_(2)(g)

In the first order reaction A(g)rarrB(g)+C(g) , the initial pressure of A is 11200 Pa and the total pressure at the end of 16 minutes is 14667 Pa. Calculate the half life period of reaction.

For the reaction , 2C_(2)H_(6)(g)+7O_(2)(g)rarr4CO_(2)(g)+6H_(2)O(l) , the rate of disappearnce of C_(2)H_(6)(g) :

For the decomposition, N_(2)O_(5)(g) rarr N_(2)O_(4)(g) + 1//2O_(2)(g) , the initial pressure of N_(2)O_(5) is 114 mm and after 20 sec , the pressure of reaction mixture becomes 133 mm . Calculate the rate of reaction in terms of : (a) change in pressure sec^(-1) and (b) change in molarity sec^(-1) . Given that reaction is carried out at 127^(@)C .

For the reaction C_(2)H_(4)(g)+3O_(2)(g) rarr 2CO_(2) (g) +2H_(2)O(l) , Delta E=-1415 kJ . The DeltaH at 27^(@)C is

NTA MOCK TESTS-NTA JEE MOCK TEST 66-CHEMISTRY
  1. The wavelength of the third line of the Balmer series for a hydrogen a...

    Text Solution

    |

  2. Match the column I with column II and mark the appropriate choice.

    Text Solution

    |

  3. Calculate the half life of the first-order reaction: C(2)H(4)O(g) ra...

    Text Solution

    |

  4. For the reaction, AB(g)hArr A(g)+B(g), AB" is "33% dissociated at a to...

    Text Solution

    |

  5. Rank the following compounds in decreasing order of reactivity in elec...

    Text Solution

    |

  6. The major product of the reaction is

    Text Solution

    |

  7. The element A burns in nitrogen to give an ionic compound B. The compo...

    Text Solution

    |

  8. How long will it take for a uniform current of 6.00 A to deposit 78 g ...

    Text Solution

    |

  9. Mark the correct order of decreasing acid strength of the following co...

    Text Solution

    |

  10. For real gases, the relation between P, V and T is given by an van der...

    Text Solution

    |

  11. The number of geometrical isomers for octahedral [Co(NH(3))(2)Cl(4)]^(...

    Text Solution

    |

  12. The relative lowering of vapour pressure of an aqueous solution contai...

    Text Solution

    |

  13. Final product D in the sequence of reaction is

    Text Solution

    |

  14. An organic liquid A containing C,H and O has a pleasant odour with a b...

    Text Solution

    |

  15. Final product (p) in the sequence of reaction is

    Text Solution

    |

  16. A given mass of gas expands from state A to state B by three paths 1, ...

    Text Solution

    |

  17. Consider the following substances : 1. OF(2) 2. Cl(2)O 3. Br(2)O ...

    Text Solution

    |

  18. Which of the following reactions is taking place resulting in discolo...

    Text Solution

    |

  19. Plot of log against log P is a straight line inclined at an angl...

    Text Solution

    |

  20. In carprolactum if 'a' is number of lone pairs of e^(-) and 'b' is num...

    Text Solution

    |