Problem: In a common classroom demonstration, a balloon is filled with air and submerged in liquid nitrogen. The balloon contracts as the gases within the balloon cool. Suppose the balloon initially contains 2.96 L of air at a temperature of 25.5 oC and a pressure of 0.995 atm .Calculate the expected volume of the balloon upon cooling to -196 oC (the boiling point of liquid nitrogen). When the demonstration is carried out, the actual volume of the balloon decreases to 0.62 L .

FREE Expert Solution

We are asked to calculate the expected volume of the balloon upon cooling to -196 oC.


Given: 

V1 = 2.96 L

T1 =25.5 oC + 273.15 = 298.65 K

V2 = ??

T2 =-196 oC + 273.15 = 77.15 K


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Problem Details

In a common classroom demonstration, a balloon is filled with air and submerged in liquid nitrogen. The balloon contracts as the gases within the balloon cool. Suppose the balloon initially contains 2.96 L of air at a temperature of 25.5 oC and a pressure of 0.995 atm .

Calculate the expected volume of the balloon upon cooling to -196 oC (the boiling point of liquid nitrogen). When the demonstration is carried out, the actual volume of the balloon decreases to 0.62 L .

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Chemistry Gas Laws concept. If you need more Chemistry Gas Laws practice, you can also practice Chemistry Gas Laws practice problems.