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1. can ice be melted merely by applying pressure? how about dry ice? Explain your answers. 2....

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Chemistry


1. can ice be melted merely by applying pressure? how about dryice? Explain your answers.
2. explain how the solid liquid line in the phase diagram of waterdiffers in character from the solid liquid line in the phasediagrams of most other substances such as CO2.
3. which phase of a substance (gas, liquid or soild) is most likelyto be the stable phase:(A) at low temperature and high presumes(b)at high temperature and low pressure?
4. at what temperature and pressures does a substance behave as asupercritical fluid?
5. explain why a needle floats on the surface of water but sinks ina container of methanol?
6. explain why the plumbing in a house may burst If the temperaturein the house drops below O°C?
7. a hot needle sinks when placed on the surface of cold water buta cold needle floats why?
8.what kind of intermoloccular force must be overcome as (a) soildCO2 sublime (b) CHC13 boils (c) ice melts?

Answer & Explanation Solved by verified expert
3.9 Ratings (430 Votes)
1 Unlike most subtances Ice is less dense that water If you apply pressure in Ice you are in fact promoting a reduction in volume the only way to do this is water become liquid Dry Ice fallow the normal behavior    See Answer
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