A gaseous mixture enclosed in a vessel of volume 2 m3 consists of 2 gm mole of a gas A with γA=CPCV=53, another gas B with γB=75 at a temperature 43∘C. The gram molecular weights of A & B are 32 and 4 respectively. Assume gas to be non - reacting & immiscible to each other . The gaseous mixture follows PV=2014=constant in adiabatic process. Find the number of gram moles of the gas B in the gaseous mixture.