A container holds a quantity of liquid nitrogen at a temperature of -200 degrees C. Explain how each of the following could be used to warm up the nitrogen.

Question

a)ice cubes
b)hot water bath
c)bubbling room air through the liquid

All these substances contain a lot amount of thermal energy so.... i don't know what to say, i know that its cause of the arrangement of their electrons that they are able to warm up and cool down at different rates, but I don't get how to answer this question. Im only posting the ones which Im having a tough time on, and this one is one of them.

Answer 1

arrangement of electrons? Nonsense.

Heat is molecules in motion: vibrating, rotating, or moving. The warmer substances transfer energy to the "slower" colder substances in collisions when in contact.