A gaseous mixture at a total pressure of 1.50 atm contains equal molar amounts of He, Ne, and Ar. At constant temperature CO2 gas is added to the mixture until the total
pressure is 3.00 atm. Which of the following is a correct statement concerning partial
pressures after the CO2 addition?
O All four gases have equal partial pressures.
O The partial pressure of Ar has doubled.
O more than one correct response
O The partial pressure of CO2 is three times that of Ne.