QUESTION 13 Which of the following statements about kinetic energy (K.E.) is TRUE? O The K.E. of a body will double if its velocity doubles. O The K.E. of a body is independent of its mass. O All objects moving with the same velocity have the same K.E. O As the velocity of a body increases, its K.E. decreases. O None of the above. QUESTION 14 Which of the following properties of a real gas is related to the 'b' coefficient in the van der Waals equation, nRT = [P + (n/v?a)](v-nb)? O There are attractive forces between atoms or molecules of a real gas. O Real gases consist of molecules or atoms which have volume. O The average speed of the molecules of a real gas increases with temperature. O None of these are related to 'b'. QUESTION 15 A mixture of two gases was allowed to effuse from a container. One of the gases escaped from the container 1.43 times as fast as the other one. The two gases could have been O co and SF6 O 02 and Cl2 o cO and CO2 O Cl2 and SF6 O 02 and SF6 QUESTION 16 Which one of the following gases would deviate the least from ideal gas behaviour? O Ne O CH3CI OKr O co2 O F2

QUESTION 13 Which of the following statements about kinetic energy (K.E.) is TRUE? O The K.E. of a body will double if its velocity doubles. O The K.E. of a body is independent of its mass. O All objects moving with the same velocity have the same K.E. O As the velocity of a body increases, its K.E. decreases. O None of the above. QUESTION 14 Which of the following properties of a real gas is related to the 'b' coefficient in the van der Waals equation, nRT = [P + (n/v?a)](v-nb)? O There are attractive forces between atoms or molecules of a real gas. O Real gases consist of molecules or atoms which have volume. O The average speed of the molecules of a real gas increases with temperature. O None of these are related to 'b'. QUESTION 15 A mixture of two gases was allowed to effuse from a container. One of the gases escaped from the container 1.43 times as fast as the other one. The two gases could have been O co and SF6 O 02 and Cl2 o cO and CO2 O Cl2 and SF6 O 02 and SF6 QUESTION 16 Which one of the following gases would deviate the least from ideal gas behaviour? O Ne O CH3CI OKr O co2 O F2

Living by Chemistry

2nd Edition

ISBN:9781464142314

Author:Angelica M. Stacy

Publisher:Angelica M. Stacy

ChapterU5: Fire: Energy , Thermodynamics, And Oxidation-reduction

Section: Chapter Questions

Problem 4STP

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