Question

17. When a liquid sample is taken from sea level to a higher elevation, what happens to the external (atmospheric) pressure on the liquid and the boiling point of the liquid? A) Both decrease. B) Both increase. C) Pressure goes down but boiling point goes up D) Pressure goes up but boiling point goes down. 18. In comparing gases with liquids, gases have A) greater; smaller B) greater; greater C) smaller; smaller D) smaller; greater E) none of the above compressibility and density 19. Which transformation is condensation? A) liquid solid B) liquid- gas C) solid liquid D) solid gas E) gas liquid 20. Which description best fits a gas? A) definite shape and volume; strong intermolecular attractions B) definite volume; shape of container; moderate intermolecular attractions C) definite volume; shape of container; weak intermolecular attractions D) volume and shape of container; no intermolecular attractions E) volume and shape of container, strong intermolecular attractions 21. According to Avogadro's Law, the volume of a gas will increased while the A) increase; number of moles; pressure and temperature B) decrease; number of moles; pressure and temperature C) increase; temperature; pressure and number of moles D) decrease; pressure, temperature and number of moles E) increase; pressure; temperature and number of moles as the is are held constant ?.ley pars ( )...-16. 52-of A. 13.5 c. 38.0 2 D. . ret

Answer 1

17)

As we move up, atmospheric pressure decreases

Boiling point is temperature where pressure of system is equal to atmospheric pressure

So, boiling point also decreases

Answer: A

18)

gas have greater compressibility and less density

Answer: A

19)

condensation is changing gas to liquid

Answer: E

20)

Gas do not definite shape and volume

The intermolecular force is weak

Answer: D

only 4 parts at a time