The decomposition of ammonia to the elements is a first-order reaction with a half-life of 200 s at a certain temperature. How long will it take the partial pressure of ammonia to decrease from 0.100 atm to 0.00625 atm?  

A.
200 s
B.
400 s
C.
800 s
D.
1,000 s
Chemistry
AP
College Board
Exam No:AP Chemistry Problem Set 1 Year:2024 Question No:APChemistry2024AP0381

Answer:

C

Knowledge points:

5.3 Concentration Changes Over Time

Solution:

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