Use (P1V1/T1) = (P2V2/T2)
Remember to convert T from C to kelvin. K = 273 + C
Post your work if you get stuck.
A weather balloon was filled with helium to a volume of 25L at STP. What volume will it have when it rises to an altitude where the atmospheric pressure is 735 torr and the temperature is -22C?
3 answers
-22 + 273 =251K
P1= 735torr
V1= 25 L
Is the right, or how do I set up this problem?
P1= 735torr
V1= 25 L
Is the right, or how do I set up this problem?
(P1V1/T1) = (P2V2/T2)
STP means standard temperature and pressure with standard pressure being 760 mm Hg and standard T being 0 degrees C which is 273 K. So
P1 = 760 mm Hg
V1 = 25 L
T1 = 273 K
P2 = 735 mm Hg (torr and mm Hg are the same)
V2 = ?
T2 = -22 C + 273 = 251 K
Plug those values into the formula and solve for V2 in which will be in units of Liters. Post your work if you get stuck. If you have trouble tell be what your problem is. This is not higher mathematics. It's algebra.
STP means standard temperature and pressure with standard pressure being 760 mm Hg and standard T being 0 degrees C which is 273 K. So
P1 = 760 mm Hg
V1 = 25 L
T1 = 273 K
P2 = 735 mm Hg (torr and mm Hg are the same)
V2 = ?
T2 = -22 C + 273 = 251 K
Plug those values into the formula and solve for V2 in which will be in units of Liters. Post your work if you get stuck. If you have trouble tell be what your problem is. This is not higher mathematics. It's algebra.
2 answers