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.
1. Based on Table 1, for H2 at 273 K, the absolute value of the difference between the molar volume at 5.00 atm and the molar volume at 10.0 atm is approximately:
Your Answer is
Correct Answer is B
Explanation
Directly find the column of hydrogen gas according to Table 1, then find the two rows of 5atm and 10atm horizontally, and subtract the values to get the answer B