Question
Chemistry Question on Solutions
What will happen to the volume of a bubble of air found under water in a lake, where the temperature is 15oC and the pressure is 1.5 atm, if the bubble rises to the surface where the temperature is 25oC and the pressure is 1.0 atm?
A
(A) Its volume will increase by a factor of 2.5.
B
(B) Its volume will increase by a factor of 1.6.
C
(C) Its volume will increase by a factor of 1.1.
D
(D) Its volume will increase by a factor of 0.70.
Answer
(B) Its volume will increase by a factor of 1.6.
Explanation
Solution
Explanation:
p1V1/T1 = p2V2/T2p1 = 1.5 atmT1 = 15oC = (15 + 273) K = 288 Kp2 = 1.0 atmT2 = 25 + 273 = 298 KTherefore, 1.5 x V1/288 = 1 x V2/298 V2 = 1.6V1