The Rate of a Chemical Reaction Increases with an Increase

question 61

Multiple Choice

The rate of a chemical reaction increases with an increase in temperature.Which of the following correctly explains why?

• A)At higher temperatures,the activation energy is increased.
• B)At higher temperatures,the activation energy is decreased.
• C)At higher temperatures,more reactant molecules are present and collisions occur more frequently.
• D)At higher temperatures,reactant molecules move faster,collide more often,and produce more effective collisions.
• E)At higher temperatures,a catalyst is usually present.

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Definitions:

Capital Per Worker

The total capital stock of an economy divided by the number of labor workers, influencing productivity.

Labor Productivity

A measure of economic performance that calculates the amount of goods and services produced per hour of labor.

Per-Worker Production Function

The relationship between the amount of capital per worker in the economy and average output per worker.

Per-Worker Production Functions

A model depicting how the output produced by an average worker changes in response to varying levels of capital or technology per worker.