Question

The cooling curve below represents the cooling of a sample of gas. According to the diagram, what phase(s) would you expect to observe when the substance is at 300 Kelvin?

Answer 1

A line graph showing the cooling curve of a substance being cooled from the gas phase all the way down to the solid phase. The substance starts at a temperature around 450 K and ends at a temperature around 250 K. First, there is a decline with a negative slope from 450 K to 375 K, followed by a horizontal region at 375 K. Then there is another decline with a negative slope from 375 K to 275 K, followed by another horizontal region at 275 K. The end of the cooling curve shows another decline with a negative slope from 275 K to 250 K.

Answer 2

gas

gas and liquid

liquid

liquid and solid

Answer 3

so liquid

Answer 4

or would it be liquid and solid

Answer 5

@Abmon98