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At the pressure of 3 atm,12.5 L of a cer...

At the pressure of 3 atm,12.5 L of a certain gas weighs 15 g. The average speed of gaseous molecule is

A

6.02x`10^4`cm/s

B

9.41x`10^4`cm/s

C

8.02x`10^4`cm/s

D

7.75x`10^4`cm/s

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AAKASH INSTITUTE ENGLISH-TEST 5-EXAMPLE
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