Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
What pressure would it take to compress 200 L of helium gas initially at 1.00 atm into a 2.00 L tank at constant temperature?
##P_1V_1=P_2V_2##, given constant temperature and given quantity of gas.
##P_2=(P_1V_1)/V_2## ##=## ##(200*Lxx1.00*atm)/(2.00*L)## ##=## ##"A lot of atmospheres"##