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The most probable speed of 8g of H(2) is...

The most probable speed of `8g` of `H_(2)` is `200 ms^(-1)`. Average kinetic energy (neglect rotational and vibrational energy) of `H_(2)` gas is :

A

480 kJ

B

240 kJ

C

120 kJ

D

360 kJ

Text Solution

Verified by Experts

The correct Answer is:
B
`200 = sqrt((2RT)/(2)) = RT = 4000 `, Average K.E. = `(3)/(2) nRT = (3)/(2) xx (8)/(2) xx 4000 = 24000 J = 240 Kj`
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