We’re being asked which gas has the largest molar mass at 25 ˚C.
In the graph, the y-axis is the relative number of particles while the x-axis is the molecular speed. We can think of the molar mass of a gas as being related to the number of particles (↑ molar mass = ↑ particles).
Recall that the molecular speed of a gas is given by:
where R = gas constant, T = temperature, and M = molar mass of the gas.
Which of the gases in the graph below has the largest molar mass?
E) There is not enough information to determine.
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Based on our data, we think this problem is relevant for Professor Benson's class at MONTGOMERY COLLEGE.