At the same temperature and pressure, which of the following gases contains molecules with the fastest average velocity? A) Carbon Monoxide, CO B) Carbon Dioxide, CO2 C) Nitrogen Monoxide, NO D) Nitrogen Dioxide, NO2 E) The average velocity is the same
Part A)
At the same temperature and pressure, which of the following gases contains molecules with the fastest average velocity?
A) Carbon Monoxide, CO
B) Carbon Dioxide, CO2
C) Nitrogen Monoxide, NO
D) Nitrogen Dioxide, NO2
E) The average velocity is the same
Part B)
Which of the following explains why the pressure of gas increases, when the volume decreases and the temperature remains constant?
A) The velocity of molecules increases
B) The collision frequency increases
C) The kinetic energy increases
D) All of the above
E) None of the above
part C)
Methyl acetate (C3H6O2) smells fragrant, and hydrogen sulfide gas (H2S) smells like rotten eggs. How would you react, if both gases escape from the same container at the same time in the laboratory?
A) I would first be attracted by the fragrant smell of methyl acetate, before being repulsed by the bad smell of hydrogen sulfide gas.
B) I would first be repulsed by the fragrant smell of methyl acetate, before being attracted by the bad smell of hydrogen sulfide gas.
C) I would neither be attracted nor be repulsed because the fragrant smell of the methyl acetate will mix with the bad smell of the hydrogen sulfide
D) I would first be repulsed by the bad smell of hydrogen sulfide gas, before being attracted by the fragrant smell of methyl acetate.
E) None of the above choices is correct
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