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Observe the following equilibrium in a 1 L flask. A(g) ⇌ B(g) At T(K), the equilibrium concentrations of A and B are 0.5 M and 0.375 M respectively. 0.1 moles of A is added into the flask and heated to T(K) to establish the equilibrium again. The new equilibrium concentrations (in M) of A and B are respectively.
- 0.367, 0.275
- 0.53, 0.4
- 0.742, 0.557
- 0.557, 0.418
Correct answer: 0.557, 0.418
Solution
The correct option reflects the shift in equilibrium concentrations after adding more A, which increases the concentration of A and causes the system to adjust by producing more B until a new equilibrium is reached, consistent with Le Chatelier's principle.
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