Sample Problem 5.3
Applying the Temperature-Pressure Relationship
PROBLEM:
A 1 L steel tank is fitted with a safety valve that opens if the internal pressure exceeds 1.00 x 103 torr. It is filled with helium at 23 oC and 0.991 atm and placed in boiling water at exactly 100 oC. Will the safety valve open?
PLAN:
SOLUTION:
P1 (atm)
T1 and T2 (oC)
P1 (torr)
T1 and T2 (K)
P1 = 0.991 atm
P2 = unknown
T1 = 23 oC
T2 = 100 oC
P2 (torr)
1 atm = 760 torr
x T2/T1
K = oC + 273.15
= 753 torr
= 949 torr
n and V are constant
or
(valve will not open)
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