In which one of the following, does the given amount of chlorine exert the least pressure in a vessel of capacity 1 dm ³ at 273 ~K ?

Step-by-step solution

Ideal gas equation is pV = nRT When V and T are same, p n Thus, when number of moles, ie, n is least, it will exert least pressure. (a) n = wt mol . wt = 0.0355 35.5 =1 10⁻³ ~mol (b) n = 0.071 35.5 =2 10⁻³ ~mol (c) n = number of molecules N _ A = 6.023 10²¹ 6.023 10²³ =0.01 ~mol (d) n =0.02 ~mol Thus, 0.0355 ~g chlorine will exert the least pressure.