If it takes 0.5 L of oxygen gas kept in a cylinder under pressure to fill an evacuated 4.50 L vessel in which the pressure is 0.98 atm, what was the initial pressure of the gas in the cylinder?
Volume of oxygen "V_1=0.5L"
Let initial pressure be "P_1"
and Volume of Vessel "v_2=4.5L"
pressure of vessel "P_2=0.98 atm"
Using Boyle's law we have,
"P_1\\times 0.5=0.98\\times 4.5\\\\\\Rightarrow P_1=8.82atm"