## Constant pressure and constant volume

Baoying Li 1B
Posts: 113
Joined: Sat Aug 17, 2019 12:18 am

### Constant pressure and constant volume

What is the difference between constant pressure and constant volume? How would the heat, work, and internal energy respond to these two states?

Asha Agarwal 1E
Posts: 51
Joined: Fri Aug 30, 2019 12:16 am

### Re: Constant pressure and constant volume

Constant volume refers to the size of the container staying the same whereas constant pressure refers to the pressure staying the same as a result of the number of moles or volume staying the same while other factors change.

Daniel Chen 2L
Posts: 101
Joined: Fri Aug 30, 2019 12:15 am

### Re: Constant pressure and constant volume

Have we learned about how heat, work, and internal energies respond to these yet?

Shutong Hou_1F
Posts: 117
Joined: Sat Sep 14, 2019 12:17 am

### Re: Constant pressure and constant volume

Pressure and volume are two totally different measurements, because they measure different parameters of substances and have different units. However, change in pressure, under many circumstances, could imply change in volume, and vice versa, according to the ideal gas law, PV = nRT.