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For the gas phase reaction C(2)H(4)+H(...

For the gas phase reaction
`C_(2)H_(4)+H_(2) hArr C_(2)H_(6)(DeltaH=-32.7 "kcal")`
carried out in a vessel, the equilibrium concentration of `C_(2)H_(4)` can be increased by

A

Increasing the temperature

B

Decreasing the temperature

C

Removing some `H_(2)`

D

Adding some `C_(2)H_(6)`

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Applying Le Chatelier's principle, when the temperature is increased, the equilibrium shifts in the direction of the endothermic reaction. When the pressure is increased, the equilibrium shift in the direaction of less number of moles. The removal of reactant and addition of a product shift the equilibrium in the backward direction.
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Knowledge Check

  • For the gas phase reaction, C_(2)H_(4)+H_(2)hArrC_(2)H_(6) (DeltaH=-32.7 kcal) carried out in a vessel, the equilibrium concentration of C_(2)H_(4) can be increased by

    A
    increasing the temperature
    B
    decreasing the pressurre
    C
    removing some `H_(2)`
    D
    adding some `C_(2)H_(6)`

  • For the gas phase reaction, C_(2)H_(4)+H_(2)hArrC_(2)H_(6)(Deltah=-32.7kcal) carried out in a vessel, the equlibrium concentration of C_(2)H_(4) can be increased by

    A
    Increasing the temperature
    B
    Decreasing the pressure
    C
    Removing some `H_(2)`
    D
    Adding some `C_(2)H_(6)`

  • For the gas phase reaction C1_2H_4+H_2 Leftrightarrow C_2H_2 (triangleH="-32.7 kcal") carried out in a vessel, the equilibrium concentration of C_2H_4 can be increased by

    A
    increasing the temperature
    B
    decreasing the pressure
    C
    removing some `H_2`
    D
    adding some `C_2H_6`