If the pressure, volume, and temperature of a gas are known, which can most likely be found by using the ideal gas law?
PV = nRT. So if you know P, V, T and R, what's left?
The ideal gas law is used to relate the pressure (P), volume (V), and temperature (T) of a gas. The equation for the ideal gas law is:
PV = nRT
where P is the pressure, V is the volume, n is the number of moles of gas, R is the ideal gas constant, and T is the temperature.
If the pressure, volume, and temperature of a gas are known, and the number of moles of gas is also known or can be determined, then the ideal gas law can be used to find the missing variable.
To find the missing variable using the ideal gas law, rearrange the equation to solve for the desired variable.
For example:
- If P, V, and T are known, and you want to find the number of moles (n), you can rearrange the equation as n = PV / RT.
- If P, V, and n are known, and you want to find the temperature (T), you can rearrange the equation as T = PV / (nR).
- If V, n, and T are known, and you want to find the pressure (P), you can rearrange the equation as P = nRT / V.
By manipulating the ideal gas law equation, you can solve for any of the four variables if the values of the other three are known or can be obtained.