What Drives Chemical Reactions D.4 Entropy and Spontaneity (id: bc45def81)

本题目来源于试卷: What Drives Chemical Reactions D.4 Entropy and Spontaneity，类别为 IB化学

[单选题]
Which of the following reactifo cuq.i9 7(*8gok kp8n /swcxons will h,d;4a -*9v x ebdyq2yj9nxhvu ip4i+fave the greatest decrease in entropy?

A. $N_2$(g)+3$H_2$(g)→2$NH_3$(g)
B. $H_2$(g)+$I_2$(g)→2HI(g)
C. 2$SO_2$(g)+$O_2$(g)→2$SO_3$(g)
D. $N_2$+$O_2$→2$NO$(g)


参考答案:  A


本题详细解析:
A has the greatest decrease in number of moles of gas $(4\stackrel{}{\to }2)$.

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