For an ideal gas, number of moles per litre in terms of its pressure

For an ideal gas, number of moles per litre in terms of its pressure P, gas constant R and temperature T is

  1. P/RT
  2. PT/R
  3. RT/P
  4. PRT

Solution

According to ideal gas equation

PV = nRT

P: Pressure; V: Volume; n: Number of moles; R: Gas constant; T: Temperature

Volume, V is given 1 litre. Therefore

P = nRT

n = P/RT

The correct option is A.