1.
This is a question about ideal gases.
When a gas in a cylinder is compressed at constant temperature by a piston, thepressure of the gas increases. Consider the following three statements.
2.
I The rate at which the molecules collide with the piston increases.
3.
II The average speed of the molecules increases.
4.
III The molecules collide with each other more often.
Which statement(s) correctly explain the increase in pressure?
5.
A I only
6.
B II only
7.
C I and II only
8.
D I and III only
I thought the answer was D, but it is A. I don't understand this.
1.
This is a question about ideal gases.
When a gas in a cylinder is compressed at constant temperature by a piston, thepressure of the gas increases. Consider the following three statements.
2.
I The rate at which the molecules collide with the piston increases.
3.
II The average speed of the molecules increases.
4.
III The molecules collide with each other more often.
Which statement(s) correctly explain the increase in pressure?
5.
A I only
6.
B II only
7.
C I and II only
8.
D I and III only
I thought the answer was D, but it is A. I don't understand this.