Mayfield High School



Name _______________________________________ Date _____________________ Period ______HomeworkChapter 10: GasesExercises: Sections 10.1, 10.2 : Characteristics of Gases; PressureCan you derive the Pascal by using a combination of SI fundamental units? How? Can you fill in the following table of SI fundamental and derived physical quantities and units found in pressure?SI FundamentalSI DerivedPhysical QuantityunitPhysical QuantityUnitMade from the following combination of fundamental unitsList at least 4 common units of pressure, other than the Pascal, and their values at sea level and 0oC.1. (a) Both a liquid and a gas are moved to larger containers. How does their behavior differ? Explain the difference in molecular terms.1. Continued:(b) Although water and carbon tetrachloride, CCl4(l), do not mix, their vapors form homogeneous mixtures. Explain.(c) The densities of gases are generally reported in units of g/ L, whereas those for liquids are reported as g/ mL. Explain the molecular bases for this difference.2. Explain why the height of mercury in a mercury barometer is independent of the diameter of the mercury column.3. Dibutylphthalate (DBP) is a nonvolatile liquid with a density of 1.05 g/ mL. The density of mercury is 13.6 g/ mL. Assuming that the maximum atmospheric pressure is 760 torr, what would be the minimum height, in meters of a barometer based on DBP? This has nothing to do with actually answering the question – I just thought you might like to know! 4. Perform the following conversions: Follow ALL math work rules!(a) 0.865 atm to torr;(b) 547 torr to kilopascals;(c) 755 mm Hg to atmospheres;(d) 96,300 Pa to atmospheres;(e) 0.897 atm to bars.5. (a) On Titan, the largest moon of Saturn, the atmospheric pressure is 1.63105 Pa. What is the atmospheric pressure of Titan in atm? Follow All MATH work rules! (b) On Venus the surface atmospheric pressure is about 90 Earth atmospheres. What is the Venusian atmospheric pressure in kilopascals? Follow All MATH work rules!6. A lead cube with edges 25.0 cm in length rests on a flat surface. The density of lead is 11.34 g/ cm3. Calculate the pressure in Pascals exerted by the cube on the surface. Follow All MATH work rules!7. An open-end manometer containing mercury is connected to a container of gas. What is the pressure of the enclosed gas in torr in each of the following situations? Follow All MATH work rules!(a) The mercury in the arm attached to the gas is 5.7 cm higher than the one to the atmosphere; atmospheric pressure is 1.05 atm.(b) The mercury in the arm attached to the gas is 4.1 cm lower than in the one open to the atmosphere; atmospheric pressure is 0.967 atm. ................
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