CH5_Gas_Laws_Study_Guide%281%29 - Name:...

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Unformatted text preview: Name: ___________________________________ CH101 A The Gas Laws – Study Guide sections 5.2 and 5.3 in the textbook Pressure The pressure is defined as________________________________________ The SI unit for pressure is_________. However, chemists use ________, ________, and _______ more commonly as units for measuring pressure. Complete the following conversion table: 680.0 mm Hg 16.5 psi kPa torr atm List the following data in order of increasing pressure: (a) 102 kPa (b) 782 torr (c) 1.05 atm Gas Laws The 4 variables or physical properties that are used to define the state of a gaseous system are _______________, _________________,_________________, and __________________. The constant variables in Charles’ law are ________________ and ________________, the changing variables are __________________and ___________________. The constant variables in Boyle’s law are __________________ and ________________, the changing variables are _________________and ____________________. The constant variables in Avogadro’s law are ________________ and _______________, the changing variables are ________________and _________________. Suppose a gas has an initial pressure of 2.0 atm. What happens to the pressure if the volume is doubled (assuming the temperature and moles of gas remain unchanged)? To solve this problem, one needs to use ________________’s law. Now suppose a gas occupies 1.5 liters at a certain temperature and pressure. What happens to the volume if the number of moles of gas is tripled? To solve this problem, one needs to use _____________’s law. Watch video tutorials (2) on Blackboard All of the above gas laws can be combined into one overall equation, called the Combined Gas Law Equation. P1 V1 P2 V2 = n1 T1 n2 T2 Any variables which are held constant may be cancelled out of this equation. End of Chapter Practice Problems Tro First Edition: #29 (a‐b), 35, 37, 39 Tro Second Edition: #29 (a‐b), 35, 37, 39 answers are located in Appendix III of the textbook Take the Quiz on Blackboard 2 ...
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This note was uploaded on 11/11/2011 for the course MATH 180 taught by Professor Byrns during the Spring '11 term at Montgomery College.

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