[計量] PP1-PS
看板GMAT (GMAT入學考試)作者aaaaaakoyasu (六點半天色還沒亮)時間17年前 (2008/11/04 12:38)推噓0(0推 0噓 0→)留言0則, 0人參與討論串1/5 (看更多)
The rate of a certain chemical reaction is directly proportional to the
square of the concentration of chemical A present and inversely proportional
to the concentration of chemical B present. If the concentration of chemical
B is increased by 100 percent, which of the following is closest to the
percent change in the concentration of chemical A required to keep the
reaction rate unchanged?
(A) 100% decrease
(B) 50% decrease
(C) 40% decrease
(D) 40% increase
(E) 50% increase
題目看沒有很懂...拜託了<(_ _)>
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