Question

Which law relates temperature, pressure, volume, and the number of moles of a gas under perfect conditions? Boyle's law Charles's, law ideal, gas law, combined gas law

Answer 1

Answer : The correct option is, Combined gas law.

Explanation :

There are four gas's law which are :

• Boyle's Law : It states that the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and the number of moles of gas.

         $P\propto \frac{1}{V}$

• Charles' Law : It states that the volume of the gas is directly proportional to the temperature of the gas at constant pressure and the number of moles of the gas.

         $V\propto T$

• Gay-Lussac's Law : It states that the pressure of the gas is directly proportional to the temperature of the gas at constant volume and the number of moles of gas.

         $P\propto T$

• Avogadro's Law : It states that the volume of the gas is directly proportional to the number of moles of the gas at constant pressure and temperature of the gas.

         $V\propto n$

The combined gas law is formed by the combination of these four laws.

The combined gas law equation is,

$PV\propto nT$

For removal of the proportionality we are added the constant term 'R' which is a gas constant.

$PV=nRT$

Hence, combined gas law relates temperature, pressure, volume, and the number of moles of a gas under perfect conditions.

Answer 2

The correct answer is ideal gas law.

when the ideal gas law formula is:

 PV = nRT ,

when P is the pressure. 

V is the volume. 

and R is the ideal gas constant.

T is the temperature. 

and n is the number of moles.

So, this is the law which relates pressure, temperature, volume and number of moles . and this law state that 1 mole of an ideal gas will occupy a volume V = 22.4 L