What is the formula for Boyle's law?

is ##PV = k##, where k is a constant.

Boyle's Law can also be used to compare two gases using this formula:

##P_1 V_1 = P_2 V_2##

Boyle explained the relationship between pressure and volume at a constant temperature. He concluded that the two are inversely proportional.

Boyle's Law illustrates the inversely related variables of a gas: volume and pressure. By definition, inversely related variables mean that when one increases, the other decreases.

Boyle's Law is this:

##PV = k##, where k is a constant (NOT the same as the ideal gas constant)

It's a logical relationship, because pressure is a measure of the number of collisions the gas particles make with the container. If the volume decreases, there is a greater chance that the particles will hit the container's walls because the space is smaller. Also, if the volume increases, there is more space within the container and thus the average number of collisions of the gas particles with the container walls will be relatively less.

Boyle's Law can also be used to predict the pressure or volume of another gas, when given the conditions of that same gas at different pressure and volume.

The formula for this is as follows:

##P_1 V_1 = P_2 V_2##

This formula is used to compare two gases, when there is one unknown pressure/volume.