[alibaba]

hi to everyone. i need to ask before i try:)

Cyclopentane is enclosed in a rubber ballon. when dipped in water that is 55C hot it expands due to the liquid to vapour process (cyclopentane has a boiling temp of 49.5C). i want to know at what temp approximately will it convert back to its liquid form ( the balloon will contract to its original shape.any way to speed up the process?the room temerature is 30C. will the temperature difference (water-room) be sufficient to cause a quick vapour-to-liquid reaction thus contracting the ballon?

thanks ^_^ 

[Borek]

(cyclopentane has a boiling temp of 49.5C). i want to know at what temp approximately will it convert back to its liquid form

In a way it is funny.

[lavoisier]

Is the pressure inside the balloon exactly 1 atm? I don't think so, because otherwise balloons wouldn't blow their content out when the opening is released. The elasticity of rubber must play a role here.

If that's the case, we may expect the boiling point to be different from the standard one.