At what temperature will the total KE of 0.3 mol of He be the same as the total KE of 0.40 mol of Ar at 400 K?

At what temperature will the total KE of 0.3 mol of He be the same as

1.	At what temperature will the total KE of 0.3 mol of He be the same as the total KE of 0.40 mol of Ar at 400 K?
A.	533 K
B.	400 K
C.	346
D.	300 K
Answer» B. 400 K

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At what temperature will the total KE of 0.3 mol of He be the same as the total KE of 0.40 mol of Ar at 400 K?

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