Shown Is a Concentration Versus Time Plot for a Reaction

question 14

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.What is the rate of reaction with respect to A over the time interval 0 to 100 seconds?

• A)0 M/s
• B)less than 3.7 × 10^-5 M/s
• C)3.7 × 10^-5 M/s
• D)greater than 3.7 × 10^-5 M/s

---

Definitions:

Predetermined Overhead Rate

An estimated overhead rate used to assign expected overhead costs to individual units of production, aiding in budgeting and cost control.

Fixed Manufacturing Expenses

Costs that do not vary with the level of production, such as rent, salaries, and equipment depreciation.

Selling and Administrative Expenses

Expenses related to the sale of products or services and the general administration of a business, excluding production costs.

Fixed Manufacturing Overhead

The portion of manufacturing overhead costs that remain constant regardless of the level of production, such as depreciation on factory equipment or salaries of factory supervisors.