题目内容

Given the reaction at equilibrium: CO(g) + 2H2(g) ⇌ CH3OH(g) + heatWhich change will shift the equilibrium to favour the products?

A. adding a catalyst
B. adding more H2(g)
C. decreasing the pressure
D. increasing the temperature

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Predict the effect of increasing the volume of the reaction vessel onthe amount of reactants and products in the following:2CH4(g) ⇌ C2H2(g) + 3H2(g)

A. increased products, decreased reactants,
B. decreased products, increased reactants
C. decreased reactants and products
D. increased products; no change in reactant

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For the reaction 2H2S(g) ⇌2H2(g) + S2(g)at a particular temperature,K = 1.6 x 10-2What is the value of K for:½ S2(g) + H2(g) ⇌ H2S(g)

A. 2.62 x 10-4
B. 1.26
C. 7.9
D. 3.8 x 103
E. 61.7

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For the equilibrium system,2SO2 (g) + O2 (g) ⇌ 2SO3 (g), the result ofremoving someSO3(g) from the system is that:

A. more SO3(g) is produced to replace that which is removed
B. Kc decreases
C. more SO2 (g) and O2 (g) are produced
D. Kc increases

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In the following reaction, which species is acting as an acid?HSO4– (aq) + CH3NH2 (l) → SO42– (aq) + CH3NH3+(aq)

A. SO42–(aq)
B. CH3NH2(l)
CH3NH3+(aq)
D. HSO4–(aq)

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Given the reaction at equilibrium: CO(g) + 2H2(g) ⇌ CH3OH(g) + heatWhich change will shift the equilibrium to favour the products?

A. adding a catalyst B. adding more H2(g) C. decreasing the pressure D. increasing the temperature

Predict the effect of increasing the volume of the reaction vessel onthe amount of reactants and products in the following:2CH4(g) ⇌ C2H2(g) + 3H2(g)

For the reaction 2H2S(g) ⇌2H2(g) + S2(g)at a particular temperature,K = 1.6 x 10-2What is the value of K for:½ S2(g) + H2(g) ⇌ H2S(g)

For the equilibrium system,2SO2 (g) + O2 (g) ⇌ 2SO3 (g), the result ofremoving someSO3(g) from the system is that:

In the following reaction, which species is acting as an acid?HSO4– (aq) + CH3NH2 (l) → SO42– (aq) + CH3NH3+(aq)

A. adding a catalyst
B. adding more H2(g)
C. decreasing the pressure
D. increasing the temperature