Passage I

The molar volume of a gas is the volume occupied by 1 mole (mol; 6 × 1023 atoms or molecules) of that gas at a given pressure and temperature.

Table 1 shows how the molar volume, in L, of each of 6 gases—helium (He), neon (Ne), argon (Ar), hydrogen (H2), nitrogen (N2), and oxygen (O2)一varies with pressure, in atmospheres (atm), at a temperature of 273 Kelvins (K).

Table 2 shows how the molar volume of each of the 6 gases varies with temperature at a pressure of 1.00 atm.

4. An ideal gas has a molar volume of 63.429 L at 1.00 atm and 773 K. At 1.00 atm and 773 K, how many of the gases listed in Table 2 have a smaller molar volume than that of an ideal gas?

Answer and Explanation

Your Answer is

Correct Answer is F

Explanation

Look at Table 2, find the row of 773K, and see how many gases have a molar volume corresponding to this temperature that is smaller than 63.429L in the title, and find that none of them is smaller than this