9) of the following gases, will have the greatest rute of effusion at a given te
ID: 556172 • Letter: 9
Question
9) of the following gases, will have the greatest rute of effusion at a given temperature. AnswerB 10) Arrange the following gases in order of increasing average molecular speed at 25°C. He, 02, COz, N2 Answer ( 11) A real gas will behave most like an ideal gas under conditions of A) high temperature and high pressure C) low temperature and high pressure E) At STP (Standard Temperature and Pressure) B) high temperature and low pressure D) low temperature and low pressure Answer ( 12) In the graph shown, which line is the best representation of Boyle's Law regarding behavior of a gas in a closed system at constant temperature? Pressure (atm A) A B) B C)C D) D E) E Answer 13) Three separate 3.5g blocks of Al, Cu, and Fe at 25 C each absorb 0.505 kJ of heat. Which block reaches the highest temperature? The specific heats of Al, Cu, and Fe are 0.900 Jg°C, 0.385yg. and 0.4441 g respectively AAICOP4 Answer 14) Which of the following has a 1,-0kJmol? A) CO(g) Answer B) NO(g) CO)HoD)NH(aq)E)1:(6)Explanation / Answer
Q10
Apply the RMS equation
RMS =sqrt(3*RT/MW)
where, R = ideal gas constant, T = temperature, MW moalr mas in kg/mol
then, the larger the mass, the slower it becomes
from the list
He >> N2 > O2 > CO2
Q11
real gases behave ideal when P is low and T is high
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