A mixture of N2(g) and Ar(g) is placed in an effusion apparatus. Which one of the following statements is wrong? (N: 14.0; Ar: 39.9 g/mol) A. The ratio of diffusion rate N2(g) to Ar(g) is 1.19. B. N2(g) diffuses faster than Ar(g). C. The ratio of diffusion rate Ar(g) to N2(g) is 1.19. D. Graham's law states that the rate of diffusion of a gas is inversely proportional to the square root of its molecular weight. E. In a tube, they meet a point closer to the Ar(g) end.

Chemistry & Chemical Reactivity
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ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter10: Gases And Their Properties
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A mixture of N2(g) and Ar(g) is placed in an effusion apparatus. Which one of the following statements
is wrong? (N: 14.0; Ar: 39.9 g/mol)
A. The ratio of diffusion rate N2(g) to Ar(g) is 1.19.
B. N2(g) diffuses faster than Ar(g).
C. The ratio of diffusion rate Ar(g) to N2(g) is 1.19.
D. Graham's law states that the rate of diffusion of a gas is inversely proportional to the square root
of its molecular weight.
E. In a tube, they meet a point closer to the Ar(g) end.
1.0 g of Sg is dissolved in 5.0 g of naphthalene. It is known that the freezing point and the molal freezing
point depression constant (K;) of naphthalene are 80.6°C and 6.9°C/m, respectively. What is the
freezing point of the solution? (S = 32.0 g/mol)
A. 5.4°C
B. 75.2°C
С. 86.0°C
D. 75.4°C
Е. 85.4°C
Transcribed Image Text:A mixture of N2(g) and Ar(g) is placed in an effusion apparatus. Which one of the following statements is wrong? (N: 14.0; Ar: 39.9 g/mol) A. The ratio of diffusion rate N2(g) to Ar(g) is 1.19. B. N2(g) diffuses faster than Ar(g). C. The ratio of diffusion rate Ar(g) to N2(g) is 1.19. D. Graham's law states that the rate of diffusion of a gas is inversely proportional to the square root of its molecular weight. E. In a tube, they meet a point closer to the Ar(g) end. 1.0 g of Sg is dissolved in 5.0 g of naphthalene. It is known that the freezing point and the molal freezing point depression constant (K;) of naphthalene are 80.6°C and 6.9°C/m, respectively. What is the freezing point of the solution? (S = 32.0 g/mol) A. 5.4°C B. 75.2°C С. 86.0°C D. 75.4°C Е. 85.4°C
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