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.

2. Consider the molar volumes of He, Ar, H2, and N2 listed in Table 2 at 323 K. What is the order of these gases from the gas having the smallest molar volume to the gas having the largest molar volume?

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

Look at Table 2, find the row of 323K horizontally, then compare the molar volumes corresponding to each gas in each column, and then arrange them in order from small to large