Problem 18.86 Bioremediation is the process by which bacteria repair their envir
ID: 870251 • Letter: P
Question
Problem 18.86
Bioremediation is the process by which bacteria repair their environment in response, for example, to an oil spill. The efficiency of bacteria for "eating" hydrocarbons depends on the amount of oxygen in the system, pH, temperature, and many other factors. In a certain oil spill, hydrocarbons from the oil disappeared with a first-order rate constant of 2
Problem 18.86
Bioremediation is the process by which bacteria repair their environment in response, for example, to an oil spill. The efficiency of bacteria for "eating" hydrocarbons depends on the amount of oxygen in the system, pH, temperature, and many other factors. In a certain oil spill, hydrocarbons from the oil disappeared with a first-order rate constant of 2
Explanation / Answer
T1/2=.693/k
So it would be T1/2=.693/(2x10^-6) so your half life would be 346,500 seconds. Since it will take 346500 seconds for it to be 50%, you need to find out how long it will be to complete 94% (100-6=94), so you'd do (346500/50)=(x/94) this equation would give you the amount of time it takes for the reaction to be 94% complete or 6% of its original value. X=651420 seconds.
X = = 7.594 days = 8 days