In the equilibrium mixture of three ideal gases A, B, C &nb

Question

In the equilibrium mixture of three ideal gases A, B, C $A\text{ }(g) \rightleftharpoons B\text{ }(g) + C\text{ }(g)$ obtained by dissociation of A to the extent of $20\%$ at a total pressure of $1.0\text{ atm}$ , what are the partial pressure of A, B and C.

19 Jan 2026

Answer :

Word Count : 196

Let the initial number of moles of (A) be (1) mole. The dissociation reaction is: [ A(g) \rightleftharpoons B(g) + C(g) ] Degree of dissociation, (\alpha = 20% = 0.2). Step 1: Express moles at equilibrium * Moles of (A) left: (n_A = 1 - \alpha = 1 - _________ __________ _______ ____ ____ ___ _____ _____ ______ ____ __________ ____.
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