Expandable Ball contains same number of moles in both the situations.
According to ideal gas law,
"PV = nRT"
P = pressure at that temperature and volume
V = volume at 1that pressure and temperature
T = temperature at that pressure and volume
R = universal gas constant
n = number of moles
In this case as expandable ball is closed structure,so,no of moles is constant.
So,
"n=constant; R= constant"
So,
PV=nRT
"nR=PV\/T" "=constant" ------(a)
Now,according to question there are two situations.
Situation 1 :
P1"=1atm"
V1"=5L"
T1"=293K"
Situation 2 :
"P2=1.75atm"
T2 "=275 K"
We have to find new volume V2 :
Using equation (a);
P1V1/T1"=" P2V2/T2
V2"=P"1V1T2/T1P2
V2 "=(1\u00d75\u00d7275)\/(1.75\u00d7293)"
V2 "= 2.682 L" (Answer)
Comments
Leave a comment