Temperature Effects on Rate Constant

Hard General Chemistry Chemical Kinetics

A researcher is studying the effects of temperature on the rate of a chemical reaction between reactant A and reactant B. The reaction is known to be exothermic and follows first-order kinetics with respect to both reactants. The researcher collects data at different temperatures and finds that the rate constant, k, increases with temperature.

The researcher also notes that a 10°C increase in temperature results in approximately a doubling of the rate constant, indicating a strong temperature dependence. Based on this observation, which of the following statements correctly describes the relationship between temperature and the rate constant of the reaction?

The rate constant k increases exponentially with temperature due to the Arrhenius equation.

The rate constant k decreases as the temperature rises because collisions between molecules become less effective.

The rate constant k remains constant regardless of temperature changes.

The rate constant k increases linearly with temperature throughout the entire range.

Hint

Submitted9.7K

Correct9.3K

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