Question

Question 1

(a) Use the ideal gas equation to calculate the pressure (in atm) of 2.40 mol of krypton (Kr) at 455 K in a 4.50 L vessel.    (b) In a 16.3 L vessel, the pressure of 2.40 mol of Kr at 455 K is 5.50 atm when calculated using the ideal gas equation and 5.40 atm when calculated using the van der waals equation of state (Note: a=5.121 and b = 0.0106). Why is the percent difference in the pressure calculated using the different equations greater when the gas is in the 4.50 L vessel compared to the 16.3 L vessel? (select from the following):

____ The molecular volume is a smaller part of the total volume of the 4.50 L vessel

____ The attractive forces between molecules become less of a factor at the higher pressure in the 4.50 L vessel.

____ The attractive forces between molecules become a greater factor at the higher pressure in the 4.50 L vessel

____ The molecular volume is a larger part of the total volume of the 4.50 L vessel

Answer 1

alio qucreaie