The molar mass of two equally sized samples of unknown gaseous compounds is shown in the table. Molar Mass Comparison
Gas Molar Mass
X 28 g/mol
Y 44 g/mol
At STP, which describes the density and effusion of both gases? (4 points)

a
Gas X has a higher density and effuses faster than Gas Y.

b
Gas X has a higher density and effuses slower than Gas Y.

c
Gas X has a lower density and effuses slower than Gas Y.

d
Gas X has a lower density and effuses faster than Gas Y.