Unformatted text preview: 200 Which statement is CORRECT? A. The intermolecular forces between C molecules should be greater than those between D molecules. B. Substance B should evaporate before A. C. The surface tension of C should be greater than that of B. D. The viscosity of A should be more than that of C. E. All are false. 15. Which pair of substances is correctly arranged with the highest melting point first? A. H 2 S, H 2 O B. Ar, Xe C. NaF, MgO D. CO 2 , SiO 2 E. KCl, PCl 3 16. The reaction used in the deployment of auto air bags is the decomposition of NaN 3 to produce nitrogen gas. How many liters of nitrogen gas at 1.15 atm and 30°C are produced by the decomposition of 145 g of NaN 3 ? (Molar mass of NaN 3 = 65.0 g/mol) 2NaN 3 (s) --> 2Na (s) + 3N 2 (g) A. 1.2 L B. 72.4 L C. 48.3 L D. 2.23 L E. 108 L...
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- Fall '08
- Chemistry, liquid water, Dr. V. Williamson, sp. heat, Vickie M. Williamson