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The gas phase reaction 2NO_{2}(g)\rightarrow N_{2}O_{4}(g)is an exothermic reaction. The
decomposition of N2O4, in equilibrium mixture ofNO_{2}(g) and N_{2}O_{4}(g) can be
increased by :

  • Option 1)

    lowering the temperature

  • Option 2)

    increasing the pressure.

  • Option 3)

    addition of an inert gas at constant  volume.

  • Option 4)

    addition of an inert gas at constant pressure.

 

Answers (1)

best_answer

As we have learned

Effect of Pressure change -

A pressure change obtained by changing the volume can affect the yield of product in case of a gaseous reaction where the total number of moles of gaseous reactant and total number of moles of gaseous product are different.

-

 

2NO_{2}\rightleftharpoons N_{2}O_{4}             \Delta H= -Ve

 by addition of an inert gas at constant pressure  , volume increases , so reaction moving in backward direction and decomposition of  N_{2}O_{4}


Option 1)

lowering the temperature

This is incorrect

Option 2)

increasing the pressure.

This is incorrect

Option 3)

addition of an inert gas at constant  volume.

This is incorrect

Option 4)

addition of an inert gas at constant pressure.

This is incorrect

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