Chemistry

Please open the attached file for the list of questions.

thank you

Document Preview: 

Unit 5 Test Name:______________ Date:__________ R = 8.314 kPa•L/mol-K 760 mmHg = 101.325 kPa Part A: Multiple Choice Circle the letter corresponding to the best answer. (Knowledge and Understanding = 15 marks) 1. The mathematical statement: “V is directly proportional to n” is equivalent to: a) Vn = constant. b) V/n = constant. c) V+n = constant. d) V = constant and n = constant. 2. Which of the following is least important in determining the physical behaviour of a gas? a) chemical composition. b) temperature. c) pressure. d) volume. e) number of moles. 3. The vapour pressure of a liquid depends on the, a) area of the exposed surface of the liquid. b) temperature of the liquid. c) volume of the container above the liquid. d) atmospheric pressure. 4. Which is an incorrect ending to the following statement? According to the kinetic molecular theory: a) molecules of a gas never collide with each other. b) the average kinetic energy of the gas molecules is directly proportional to the Kelvin temperature. c) collisions are perfectly elastic. d) collisions between the molecules and the walls of the vessel produce the pressure of the gas. e) an ideal gas is composed of molecules that doe not attract each other. 5. Real gases behave most like ideal gases when, a) the pressure is high and the temperature is low. b) the pressure is low and the temperature is high. c) the pressure is low and the temperature is low. d) the pressure is high and temperature is high. 6. If a sealed one litre jar of gas is cooled, the molecules, a) move farther apart. b) collide. c) increase their vibrational motion. d) move more slowly. 7. Charles’ Gas Law can be represented by the equation, a) V1T2 = V2T1 b) V2T2 = V1T1 c) V1P1 = V2P2 d) V1P2 = V2P1 8. The most abundant gas in the earth’s atmosphere is, a) oxygen. b) carbon dioxide. c) water vapour. d) nitrogen. 9. At constant volume, the pressure of a gas Y increases with temperature because: a) the molecules of Y move faster. b) 

Click here to order this paper @Essaybay.net. The Ultimate Custom Paper Writing Service