Which statement is NOT true for the reaction C + D F + G if the rate law is rate
ID: 474652 • Letter: W
Question
Which statement is NOT true for the reaction C + D F + G if the rate law is rate = k[C]2[D]1/2?
A) If the concentration of D is increased by a factor of 4, then the reaction rate will double.
B) If the concentration of C is doubled and the concentration of D is tripled, then the reaction rate will increase by a factor of 6.9.
C) If the concentration of C is increased by a factor of 3 and the concentration of D is decreased by a factor of 4, then the reaction rate will increase by a factor of 4.5.
D) If the concentrations of C and D are doubled, then the reaction rate will triple. E) If the concentration of C is increased by a factor of 4, then the reaction rate will increase by a factor of 16.
Explanation / Answer
Which statement is not true for the reaction C + D ---> F + G if the rate law is
rate = k[C]2[D]1/2?
If the concentrations of C and D are doubled, then the reaction rate will double.
The rate will increase by a factor of 4^1/2, or 2.
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expanation :
The total change in rate is equal to the multiplicative factor of the concentrations raised to the power of the concentration in the rate law.
If the concentrations are doubled, then the reaction rate will increase by a factor of 22 × 21/2 = 5.7.
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