5.5. Pressure of l g of an ideal gas A at 27°C is found to be 2 bar. When 2 g of another ideal gas B is introduced in the same flask at same temperature, the pressure becomes 3 bar. Find the relationship between their molecular masses.
5.5. Pressure of l g of an ideal gas A at 27°C is found to be 2 bar. When 2 g of another ideal gas B is introduced in the same flask at same temperature, the pressure becomes 3 bar. Find the relationship between their molecular masses.
5.5. Suppose molecular masses of A and B are MA and MB respectively. Then their number of moles will be
nA= 1/MA nB = 2/MB
Given: PA = 2 bar and PA + PB = 3 bar
=> PB = 1bar
Since, PV = nRT
PA= nART and PBV= nBRT
Therefore, (PA / PB) = (nA / nB)= (MB / 2MA)
=
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