The cooling curve below represents the cooling of a sample of gas. According to the cooling curve, what phase(s) would you expect to observe when the substance is at a temperature of 275 Kelvin?

Question

anonymous · Answer

gas and liquid 

 liquid 

 liquid and solid 

 solid

stephstar101 · Answer

The substance will be in its liquid state at 275K

anonymous · Answer

How do you know this?

stephstar101 · Answer

It's getting really close to the solid/liquid state, but I would say it's still liquid. Each segment is a different state; there are 5 total segments. This kinda illustrates it. http://www.docbrown.info/page03/3_52states/Image86.gif

anonymous · Answer

Sweet thanks! can you help me with one more?

stephstar101 · Answer

Sure, I'll try my best :)