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Unformatted text preview: (a) What phase change will occur when the temperature is increased from –20 ° C to +20 ° C at 1 atm pressure? (b) What phase change will occur when the pressure is increased from 0.60 atm to 1.3 atm at 0 ° C? (c) If you start at the T and P indicated point #1, can you obtain a liquid by changing the temperature only? Explain. 5. Compare the allotropes of carbon, graphite, diamond, and buckminster fullerene (C 60 ). (a) Which is a covalent network solid? (b) Which is molecular solid? (c) Explain by C 60 is a liquid at room temperature while carbon and graphite are solids. (d) In which of these are intermolecular forces important? (e) Why does graphite conduct electricity? (Consider the hybridization and bonding) 6. Determine the number of ions of each type in each unit cell....
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This note was uploaded on 01/28/2010 for the course CHM 71476 taught by Professor Marks during the Spring '10 term at ASU.
- Spring '10