Answer:
Step-by-step explanation:
Explanation:
If you treat it as an ideal gas, then
P
V
=
n
R
T
where P is pressure, V is volume, n is number of moles, R is the gas constant and T is temperature in K.
If you assume pressure is constant, and we know that the amount of substance will remain constant, and of course the gas constant is a constant, then
V
varies directly with
T
. So for the two temperatures you can say:
V
1
.
T
1
=
V
2
.
T
2
V
2
=
V
1
.
T
1
T
2
T
2
, the higher of the two temperatures, will be 273 K and
T
1
will be 20 degrees lower, so 253 K.
Now plug in the numbers:
V
2
=
3
.
253
273
=
2.78
litres.