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1.

If excluded volume is taken as zero, compressiblity factor Z isA. `(1 - (a)/(RTV))`B. `(1+ (Pb)/(RT))`C. `(PV)/(RT)`D. `(RT)/(PV)`

Answer» Correct Answer - A
When `b = 0, Z = 1 - (a)/(RTV)`
Discussion
2.

A 1 L sample of `CO` initially at S.T.P. is heated to `546^(@)C` and its volume is increased to 2 L. Which of the following is affected to the maximum extent ?A. R.M.S. velocityB. Kinetic energyC. Average velocityD. Most probable velocity

Answer» Correct Answer - B
Here temperature changes from 273 K to 819 K therefore `alpha_(1), bar(v)` and `bar(u)` increase `sqrt3` time
(Here `T_(2)//T_(1) = 3`) but K.E. will increase 3 time
Discussion