We are asked to calculate the expected volume of the balloon upon cooling to -196 oC.
V1 = 2.96 L
T1 =25.5 oC + 273.15 = 298.65 K
V2 = ??
T2 =-196 oC + 273.15 = 77.15 K
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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