MYP Chemistry Topic 5.19 Chemical Reaction Kinetics…

Which of the following observations indicates that a chemical reaction has reached completion on a concentration-versus-time graph?

True or False: While an instantaneous rate is measured at a single point in time using a tangent, an average rate is measured over a period of time using a secant line.

Which of the following reaction properties is directly measured by a conductivity meter to monitor the rate of an aqueous reaction?

True or False: Pharmacokinetics is the study of the rates at which medicines are absorbed, distributed, metabolized, and excreted by the body.

A student records the volume of gas produced in a chemical reaction at regular time intervals. The data collected is as follows: at $0\ \text{s}$ the volume is $0\ \text{cm}^3$ ; at $20\ \text{s}$ the volume is $40\ \text{cm}^3$ ; at $40\ \text{s}$ the volume is $70\ \text{cm}^3$ ; and at $60\ \text{s}$ the volume is $80\ \text{cm}^3$ . In which of the following time intervals was the average rate of reaction the highest?

The curve crosses the x-axis

The curve becomes a straight line with a constant positive slope

The curve reaches its maximum gradient

The curve levels off and becomes horizontal

The change in the intensity of light absorbed

The change in the concentration of ions

The change in the volume of gas produced

The change in the mass of the reaction flask

MYP Chemistry 5.19 Chemical Reaction Kinetics Rates Questionbank

MYP Chemistry 5.19 Chemical Reaction Kinetics Rates Questionbank

MYP Chemistry 5.19 Chemical Reaction Kinetics Rates Questionbank

MYP Chemistry 5.19 Chemical Reaction Kinetics Rates Questionbank

MYP MYP Chemistry Topic 5.19 Chemical Reaction Kinetics Rates Questionbank