Question

question 7
1 pts
gas particles moving through a pinhole refers to what phenomenon?
○ effusion
○ diffusion
○ none of the other answers listed here
○ gas velocity
question 8
1 pts
which of the following would increase the rate of effusion of a gas?
○ decreasing the temperature
○ increasing the temperature
○ none of the other answers listed here
○ increasing the size of the gas particles

Explanation:

For Question 7: Effusion is defined as the movement of gas particles through a small pinhole, while diffusion is the spread of gas through a larger space. Gas velocity refers to the speed of particles, not the pinhole movement.
For Question 8: The rate of effusion increases with higher temperature, as higher temperature increases gas particle kinetic energy and speed. Lower temperature reduces speed, and larger particles have slower effusion rates.

Answer:

Question 7: Effusion
Question 8: Increasing the temperature