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The Van't Hoff equation gives us a quantitative means of relating the change in temperature to the change in the equilibrium constant (and we can find the new equilibrium constants for a reaction at different temperatures).
Earlier in the quarter we talked about how among changes in temperature, pressure, and concentration, temperature is the only one that can affect the K value for a reaction. Depending on if a reaction is endothermic or exothermic (value of delta H), the K value can be permanently increased or decreased. The Van't Hoff equation shows us this by relating K1 and K2 to changes in temperature (T2 and T1) and delta H naught
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