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alexgriva [62]
2 years ago
10

Consider the following reaction where Kc = 1.80×10-2 at 698 K:2 HI (g) H2 (g) + I2 (g)A reaction mixture was found to contain 0.

304 moles of HI (g), 5.07×10-2 moles of H2 (g), and 4.57×10-2 moles of I2 (g), in a 1.00 liter container.Indicate True (T) or False (F) for each of the following:1. In order to reach equilibrium HI(g) must be produced .2. In order to reach equilibrium Kc must increase .3. In order to reach equilibrium H2 must be consumed .4. Qc is less than Kc.5. The reaction is at equilibrium. No further reaction will occur.
Chemistry
1 answer:
Iteru [2.4K]2 years ago
3 0

Answer:

Answer for the given statements: (1) T , (2) F , (3) T , (4) F , (5) F

Explanation:

At the given interval, concentration of HI = \frac{0.304}{1}M=0.304M

Concentration of H_{2} = \frac{5.07\times 10^{-2}}{1}M=5.07\times 10^{-2}M

Concentration of I_{2} = \frac{4.57\times 10^{-2}}{1}M=4.57\times 10^{-2}M

Reaction quotient,Q_{c} , for this reaction = \frac{[H_{2}][I_{2}]}{[HI]^{2}}

species inside third bracket represents concentrations at the given interval.

So, Q_{c}=\frac{(5.07\times 10^{-2})\times (4.57\times 10^{-2})}{(0.304)^{2}}=2.51\times 10^{-2}

So, the reaction is not at equilibrium.

As Q_{c}> K_{c} therefore reaction must run in reverse direction to reduce Q_{c} and make it equal to K_{c}. That means HI(g) must be produced and H_{2} must be consumed.

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