CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance
Problem
A balloon contains a certain mass of argon gas. The pressure and temperature are kept constant, and the same mass of neon gas is added to the balloon. What happens?
(1) The volume of the balloon expands by two times.
(2) The volume of the balloon expands by more than two times.
(3) The volume of the balloon expands by less than two times.
(4) None of the above.