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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 byA. Increasing the temperatureB. increasing concentration of `H_(2)`C. decreasing temperatureD. increasing pressure |
Answer» Correct Answer - A `C_(2)H_(4) + H_(2)hArrC_(2)H_(6)` , `Delta H = - 32.7` kcal `Delta n = P_("mole") - R_("mole") = 1 - 2 = - 1` `Delta H = -ve` exothermic reaction `darr` `x prop (1)/(T) uarr` Temperature increase reaction goes toward reactant. Thus, concentration of `C_(2)H_(4)` increase. |
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