Problem: A sample of neon effuses from a container in 77 seconds. The same amount of an unknown noble gas requires 157 seconds.Identify the second gas.

🤓 Based on our data, we think this question is relevant for Professor Mandelshtam's class at UCI.

FREE Expert Solution

Recall: Graham's Law of Effusion allows us to compare the rate of effusion of two gases. Graham's Law states that the rate of effusion of a gas is inversely proportional to its molar mass.

This means that when comparing two gases:

Recall that rate = volume over time. This means:

Assuming that volumeNe = volumeunk, the equation simplifies to:

Plugging this into the original equation:

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Problem Details

A sample of neon effuses from a container in 77 seconds. The same amount of an unknown noble gas requires 157 seconds.

Identify the second gas.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Effusion concept. You can view video lessons to learn Effusion. Or if you need more Effusion practice, you can also practice Effusion practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Mandelshtam's class at UCI.