InterviewSolution
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InterviewSolution
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The equilibrium constant K for the reaction `2HI(g) hArr H_(2)(g)+I_(2)(g)` at room temperature is `2.85` and that at `698 K` is `1.4 xx10^(-2)`. This impliesA. `HI` is exothermic compoundB. `HI` is very stable at room temperatureC. `HI` is relatively less stable than `H_(2)` and `I_(2)` at room temperatureD. `HI` is resonance stablised |
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Answer» Correct Answer - C With increase in temperature, `K` value decreases, which means that at high temperature the reaction proceeds in backward direction or proceeds forward at room temperature. In another words, at room temperature, HI dissociates or `HI` is less stable than `H_(2)` and `I_(2)`. |
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