Question

if the pressure, volume, and the number of moles of a gas are known, which is needed to calculate the universal gas constant from the ideal gas law?

Answer 1

Answer: Temperature

Explanation:

According to the ideal gas equation, which is a combination of Boyle's law, Charle's law , Gay lussac's law and Avogadro's law.

$PV=nRT$

P = Pressure of the gas

V= Volume of the gas

T= Temperature of the gas

R= Gas constant  

n=  moles of gas

$R=\frac{PV}{nT}$

Thus if pressure, volume and the number of moles of a gas are known, temperature is needed to calculate the gas constant.

Answer 2

Pv = nRT ; the missing piece is T