Question

7.58 Liquid nitrogen is an extremely cold liquid (-196 °C) used in chemistry "magic" shows to "shrink" balloons (and do other fun things). If a balloon is inflated to 2 L at 26 °C and then cooled in liquid nitrogen, what is the final volume of the balloon? ressed gas is moved to a loading 1. (77°F) where

Answer 1

Assuming pressure to be constant  Volume is directly proportional to its absolute temperature

$V \propto T$

Hence V1/T1=V2/T2

V1 = 2L ; T1 = 26 + 273 = 299 K

T2 = Temperature of liquid nitrogen = -196 + 273 = 77 K
All temperatures must be in kelvin
2/299=V2 / 77

V2=2/299 x 77
=0.52 litres

PLEASE LEAVE THE POSITIVE FEEDBACK IF YOU LIKE THE SOLUTION