JEE Mains · Chemistry · STD 11 - 6.1. Equilibrium - 1 (chemical Equilibrium)
Consider the following chemical equilibrium of the gas phase reaction at a constant temperature :
\(\mathrm{A}(\mathrm{~g}) \rightleftharpoons \mathrm{B}(\mathrm{~g})+\mathrm{C}(\mathrm{~g})\)
If \(p\) being the total pressure, \(K_p\) is the pressure equilibrium constant and \(\alpha\) is the degree of dissociation, then which of the following is true at equilibrium?
- A If p value is extremely high compared to \(\mathrm{K}_{\mathrm{p}}, \alpha \approx 1\)
- B When \(p\) increases \(\alpha\) decreases
- C If \(k_p\) value is extremely high compared to \(p, \alpha\) becomes much less than unity
- D When \(p\) increases \(\alpha\) increases
Answer & Solution
Correct Answer
(B) When \(p\) increases \(\alpha\) decreases
Step-by-step Solution
Detailed explanation
a moles of \(A(g)\) taken initially and at time Now moles fraction of \(\mathrm{A}(\mathrm{g}), \mathrm{B}(\mathrm{g})\) and \(\mathrm{C}(\mathrm{g})\) are…
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