Question

what is the expression for the combined gas law

Answer 1

P=k/V
V=KT
P=kn

PV=nRT
This is Gas Combine Law

Answer 2

What is Combined Gas Law?

Combined gas law defines the relationship from between the pressure, volume, and temperature of a gas.

Combined gas law formula: ⇒ $\frac{P_1 V_1}{T_1}=\frac{P_2 V_2}{T_2}$

A gas has an intitial volume of 4 L at a pressure of 0.1 atm and a temperature of 210K. The pressure of the gas increases to 1 atm as the temperature increases to 273K.

A 2.5 L sample of gas  has a pressure of 1.2 atm at a temperature of 298 K. If the pressure increases to 1.9 atm, causing the volume to decrease to 1.5 L.