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NEET2014ChemistryChemical EquilibriumActual

For a given exothermic reaction K p and K ' p are the equilibrium constants at temperatures T 1 and T 2 respectively (T 2 .>T 1 ). Assuming that heat of reaction is constant in temperatures range between T 1 and T 2 , it is readily observed that:

Options

  1. AK p > K ' p
  2. BK p < K ' p
  3. CK p = K ' p
  4. DK p = 1 K ' p

Correct answer

A. K p > K ' p

Step-by-step solution

log &#8289; K 2 K 1 = &#8710; H o 2.303 R 1 T 1 - 1 T 2 T 2 &#62; T 1 So K p &#62; &#160; K ' p (exothermic reaction) (Since T 2 &#62; T 1 )

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