Which gas sample has the greatest volume at STP?a) 10.0 g

Problem 5 SAQ Which gas sample has the greatest volume at STPa) 10.0 g Arb) 10.0 g Krc) 10.0 g Xed) None of the above (They all have the same volume.)STP: Standard temperature and pressure is abbreviated as STP. Molar volume of gases isspecified under these STP conditions. The volume occupied by one mole of a substance iscalled as molar volume. Standard temperature is 273 K, and standard pressure is 1.00 atm. Step by step solutionStep 1 of 3(a)Mass of the argon Ar gas = 10.0 gFirst determine the number of moles of the argon gas by using its molar mass as shown below.Molar mass of argon = 39.95 mol.Let’s calculate the volume of argon gas by using the ideal gas equation.Here, P is pressure, V is volume, n is number of moles, R is gas constant, and T is temperature.Substitute 1.0 atm for P, 0.250 mol for n, 0.08206 L.atm/mol.K for R, and 273K for T in theabove ideal gas equation.\nTherefore, the volume of argon gas is 5.60 L._____________________________________________________________________________