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Physics, 07.09.2019 18:10 Kimbeeeerly7631
In some countries liquid nitrogen is used on dairy trucks instead of mechanical refrigerators. a 3 hour delivery trip requires .200 m^3 of liquid nitrogen which has a density of 808 kg/m^3, assuming it is already at its boiling temperature of -195.8c, calculate the heat transfer necessary to evaporate this amount of liquid nitrogen and raise its temperature to 4.0c (nitrogen: lv=201 kj/ kg, cgas = 1040 j/kgc
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