June 2017 NY Regents Chemistry Exam
18 A sample of a gas is in a sealed, rigid container that maintains a constant volume. Which changes occur between the gas particles when the sample is heated?
(1) The frequency of collisions increases, and the force of collisions decreases.
(2) The frequency of collisions increases, and the force of collisions increases.
(3) The frequency of collisions decreases, and the force of collisions decreases.
(4) The frequency of collisions decreases, and the force of collisions increases.
Solution: When a sample is heated, gas particles collide more frequently with stronger force resulting in an increased rate of the reaction.
Answer: 2
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