Which of the following correctly describes the behavior of a gas?

At constant temperature and moles of gas, as the volume increases, the pressure increases.

At constant volume and temperature, as the moles of gas increases, the pressure decreases.

At constant temperature and moles of gas, as the volume increases, the pressure decreases.

At constant pressure and temperature, as the moles of gas increases, the volume must decrease

Question

Which of the following correctly describes the behavior of a gas?
 
		
At constant temperature and moles of gas, as the volume increases, the pressure increases.
 		
At constant volume and temperature, as the moles of gas increases, the pressure decreases.
 		
At constant temperature and moles of gas, as the volume increases, the pressure decreases.
 		
At constant pressure and temperature, as the moles of gas increases, the volume must decrease

anonymous · Answer

At constant temperature and moles of gas, as the volume increases, the pressure decreases.