Shown Is a Concentration Versus Time Plot for a Reaction

question 87

Multiple Choice

Shown is a concentration versus time plot for a reaction involving gases A,B,and C.
-Over the time interval 300 to 400 seconds,the rate of reaction with respect to A is Δ[A]/Δt = 3.7 × 10^-5 M/s.Over the same time interval what is the rate of reaction with respect to C,Δ[C]/Δt?

• A)Δ[C]/Δt = Δ[A]/Δt = 3.7 × 10^-5 M/s
• B)Δ[C]/Δt = (1/4)(Δ[A]/Δt)= (1/4)(3.7 × 10^-5 M/s)= 9.2 × 10^-6 M/s
• C)Δ[C]/Δt = (1/2)(Δ[A]/Δt)= (1/2)(3.7 × 10^-5 M/s)= 1.8 × 10^-5 M/s
• D)Δ[C]/Δt = -(1/2)(Δ[A]/Δt)= -(1/2)(3.7 × 10^-5 M/s)= -1.8 × 10^-5 M/s

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Definitions:

Profit Per Barrel

The net income a company earns for each barrel of oil or similar commodities produced or processed.

Present Value

The contemporary valuation of a future lump sum or cash flow sequence, based on a chosen rate of earnings.

Nonrenewable Resource

A natural resource that cannot be replaced once it is consumed, such as oil, natural gas, and coal.

Gold Ore

A mineral or rock from which gold can be profitably extracted, typically characterized by the presence of gold particles or veins within the rock.