For a gas sample containing equimolar amounts of carbon monoxideand heliumat 300 K, heliumhas average speed and average kinetic energy compared tocarbon monoxidegas. a.a lower; the same b. the same; the same c. a higher; the same d. a higher; higher

Option C (a higher; the same) is the appropriate response.

Explanation:

Given:

Temperature,

T = 300 K (both and )

As we know,

Average speed of a molecule,

⇒

Thus, the average speed of will be lower as its molar mass is greater than .

Now,

⇒ (not depend on molar mass)

Hence, it will be the same.

The other three alternatives aren't connected to the scenario given. So the above is the correct answer.

air

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