Answer:
The temperature of gas.
Step-by-step explanation:
The ideal gas Law is also called ideal gas equation. It is,
PV = nRT
P = pressure of gas
V = volume of gas
n = number of moles of gas
R= ideal gas constant
T temperature of gas
When number of moles, pressure and volume of gas is given then in order to calculate the ideal gas constant R we require temperature of gas.