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You have four fixed-volume containers at STP. Container A has 0.5 mol of gas in 11.2 L. Container B has 2 mol of gas in 22.4 L. Container C has 1 mol of gas in 22.4 L. Container D has 2 mol of gas in 11.2 L. Which of the four containers have equal pressures?

A. A and B

B. A and C

C. B and C

D. C and D

Respuesta :

The answers to the question is option B.

 At the fixed volume, all at the same temperature,
as PV=nR
P is pressure
R is a constant.
  As we know that n/V is equal (mol/volume)
0.5 divided by 11.2=1/22.4
which results 0.045
so that the answers is A and C
in order to find out which one have equal pressures, you just need to divide the volume with the mole and find out which give the same result

from the options above, the answer would be : B.    A and C

11.2 / 0.5     = 22.4

22.4 / 2        = 22.4

hope this helps