What is the half-life for a first-order reaction A-->B if the concentration of reactant A falls to 25% of its initial value in 100 seconds? A) 25 s B) 50 s C) 75 s D) 200 s
What is the half-life for a first-order reaction A-->B if the concentration of reactant A falls to 25% of its initial value in 100 seconds? A) 25 s B) 50 s C) 75 s D) 200 s
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter11: Chemical Kinetics: Rates Of Reactions
Section: Chapter Questions
Problem 121QRT: If you know some calculus, derive the integrated first-order rate law for the reaction
by following...
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What is the half-life for a first-order reaction A-->B if the concentration of reactant A falls to 25% of its initial value in 100 seconds?
A) 25 s B) 50 s C) 75 s D) 200 s
For the reaction 4 HBr(g) + O2 (g) 2 H2O(g) + 2 Br2 (g), the rate of
A) disappearance of O2 (g) equals the rate of disappearance of HBr(g).
B) disappearance of O2 (g) is four times the rate of disappearance of HBr(g).
C) appearance of Br2 (g) is half the rate of disappearance of HBr(g).
D) appearance of Br2 (g) is half the rate of disappearance of O2 (g).
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