question_answer

In the isothermal expansion of 10g of gas from volume V to 2V the work done by the gas is 575J. What is the root mean square speed of the molecules of the gas at that temperature?                                 [JEE ONLINE 25-04-2013]

A)        398 m/s                       

B) 520 m/s

C) 499 m/s

D)                   532 m/s

Correct Answer: C

Solution :

[c]