In the Gas Phase at 500

question 37

Essay

In the gas phase at 500.°C, cyclopropane reacts to form propene in a first-order reaction. The figure below shows the concentration of cyclopropane plotted versus time. Use the graph to calculate approximate values of
a. the rate of the reaction, 600. seconds after the start.
b. the half-life of the reaction, t_1/2.

---

Definitions:

Cannon-Bard Theory

A theory of emotion that argues emotions and physiological reactions such as sweating and trembling, occur simultaneously following a stimulus, rather than the emotion being a result of the physiological reactions.

James-Lange Theory

A theory hypothesizing that physiological arousal instigates the experience of emotion rather than the other way around.

Psychological

Relating to the mind or mental processes and how they affect behavior in different contexts.

Psychological Needs

Fundamental human requirements for mental well-being, including needs for autonomy, competence, and relatedness.