Posted by Kaitlyn on Monday, November 19, 2012 at 7:28pm.
(P1V1/T1) = (P2V2/T2)
Remember T must be in kelvin.
5.0 dm^3= 5 Liters
P1= .92 atm
V1= 5.0 L
P2= (800 mmHg/760 mmHg)= 1.05 atm (There are 760 mmHg in 1 atmosphere)
V2= 5.7 L
T2= 30 degrees Celsius
((.92 atm)*(5.0 L))/(T1)=((1.05 atm)*(5.7 L))/(30 Degrees)
T1= 20.8 Degrees Celsius
@DrBob222- Temperature does not need to be in Kelvin because it is a ratio, converting to Celsius would give her the same answer.
I beg your pardon. My calculations show two things.
a. your math is not right.
b. your chemistry is way not right.
The ratio of T is NOT the same and T is not the same.
(0.92*5/T1) = (1.05*5.7/30)
T1 = (0.92*5*30)/(1.05*5.7)] = 23.06 which I would round to 23.1. I assume degrees C. But this is incorrect.
The correct method.
4.6/T1 = (5.7*1.05/303) = 0.01975
T1 = 0.01975/4.6 = 232.88 K which is 232.88-273.15 = -40.26 C.
Temperature MUST be in kelvin.
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