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Unformatted text preview: 4. (2 points) 100 g of ice . Two reasons: 1) ice has a large amount of energy to accept (i.e., to cool) from its H fusion term, and 2) water (and even ice) has a much larger specific heat capacity than Magnesium (4.18 J/K·g (or 2.03 J/K·g) vs. 1.024 J/K·g). 5. (2 points) 7 cubes of ice 6. (1 point) 106,300 J or 106.3 kJ 7. (1 point) q cold = (m cold c ∆ T cold ) + (C c ∆ T cold ) = -q hot If q hot remains the same and C c is smaller for the Pyrex glass (and m & c do not change), then ∆ T must be larger with glass. Hence, the temperature change of the water must be greater with a Pyrex glass calorimeter . 8. (1 point) ∆ H = –1367 kJ...
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This note was uploaded on 08/04/2009 for the course CHEM 630888 taught by Professor Berniolles during the Spring '09 term at UCSD.
- Spring '09