TEAS Science · Practice Question

    Reaction rates: TEAS Practice Question with Answer & Explanation

    An original TEAS 7-style science practice question, written for nursing-school applicants — with a full breakdown of every answer choice.

    Question

    Why does increasing temperature usually speed a chemical reaction?

    • A.It removes all activation energy
    • B.Particles collide more often and with greater energy
      Correct
    • C.It decreases particle motion
    • D.It changes every reactant into a catalyst

    Correct answer: B. Higher temperature increases particle motion, producing more frequent and energetic collisions.

    Why B is correct

    Higher temperature increases particle motion, producing more frequent and energetic collisions.

    TEAS skill review

    This question tests reaction rates, a concept that can appear in the TEAS science section. Read the prompt carefully, identify the rule or evidence being tested, and eliminate options that do not directly satisfy it.

    Why the other choices are incorrect

    The remaining choices conflict with the relevant fact, calculation, language convention, or passage evidence. Check every option against the exact wording of the question rather than choosing an answer that is only generally related to the topic.

    Quick study tip: Reaction rate depends on effective particle collisions.

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