2. (a) Show that the mean speed of a nitrogen molecule at 300 K is 476 ms™, (b) What is the ratio of the probability of finding a nitrogen molecule whose speed is 476 ms”' at 300 K to the probability of finding a nitrogen molecule with the same speed at 600 K? Example 6.4 A room of dimensions 4 in x 4m x/3m ceiling height with a thermal load of 40 W m/is to be air-conditioned by supplying cool air froma linear diffuser across the ceiling at one end ofthe room, discharging air in one direction acrossthe ceiling. A suitable linear diffuser is to beselected for this purpose.

(a) Given: T=300K The mean speed will by given by:

Answered: 2. (a) Show that the mean speed of a…

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