The First-Order Decomposition of N₂O at 1000 K Has a Rate

question 48

Multiple Choice

The first-order decomposition of N₂O at 1000 K has a rate constant of 0.76 s^-1. If the initial concentration of N₂O is 10.9 mol L^-1, what is the concentration of N₂O after 9.6 s?

• A) 7.4 × 10^-3 mol L^-1
• B) 1.0 × 10^-3 mol L^-1
• C) 1.4 × 10^-3 mol L^-1
• D) 3.6 × 10^-3 mol L^-1
• E) 8.7 × 10^-3 mol L^-1

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Definitions:

Creatinine

A waste product generated from muscle metabolism and discharged into the urine, often used to assess kidney function.

Renal Failure

A medical condition where the kidneys lose the ability to remove waste and balance fluids in the body.

Urine

A liquid by-product of metabolism in humans and many animals, eliminated from the body by the kidneys through the process of urination.

Bladder

A hollow organ in the pelvic area that stores urine before it is expelled from the body.