题目内容

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

查看答案
更多问题

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

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

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)

What is the pH of 5.04 x 10-3 mol L-1 solution of HI? Is it acidic, basic,or neutral?

A. pH 11.7; acidic
B. pH 11.7; basic
C. pH 2.3; acidic
D. pH 2.3; basic

答案查题题库