6. A 5.0 L flask is intially filled with 0.25 mol SO3, 0.50 mol SO2, and 1.0 mol

Question

6. A 5.0 L flask is intially filled with 0.25 mol SO3, 0.50 mol SO2, and 1.0 mol O2, and allowed to reach equilibrium according to the following reaction (Kc = 0.12). Which statement is correct regarding the initial reaction quotient Q, and what happens to the concentration of SO3 as equilibrium is achieved ? 2 SO3(g) 2 SO2(g) + O2(g) a. [SO3] will decrease because Q > K. b. [SO3] will decrease because Q < K. c. [SO3] will increase because Q < K. d. [SO3] will increase because Q > K. e. [SO3] will remain the same because Q = K.

Explanation / Answer

Q=(O2*(so2)^2)/(So3)^2 Q=(1*0.5^2)/(0.25^2)=4 Q>kc and so reaction will move towards reactants side and So3 will increase option d)

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