Rise of Nationalism in EUROPE Easiest One Shot Lecture | Class 10 History SST 2022-23 | Padhle

The marks obtained by 40 students of class IX in an examination are given below: 18, 8, 12, 6, 8, 16, 12, 5, 23, 2, 16, 23, 2, 10, 20, 12, 9, 7, 6, 5, 3, 5, 13, 21, 13, 15, 20, 24, 1, 7, 21, 16, 13, 18, 23, 7, 3, 18, 17, 16 Present the data in the form of a frequency distribution using the same class size, one such class being 15-20 (where 20 is not included)

The marks obtained by 40 students of class VIII in an examination are given below: 18,8,12,0,8,16,12,5,23,2,16,23,2,10,20,12,9,7,6,5,3,5, 13,21,13,15,20,24,1,7,21,16,13,18,23,7,3,18,17,16 Present the data in the form of a frequency distribution using the same class size, one such class being 15-20 (where 20 is not included).

1 g mole of oxygen at 27^@ C and (1) atmosphere pressure is enclosed in a vessel. (a) Assuming the molecules to be moving with (v_(r m s) , find the number of collisions per second which the molecules make with one square metre area of the vessel wall. (b) The vessel is next thermally insulated and moves with a constant speed (v_(0) . It is then suddenly stoppes. The process results in a rise of temperature of the temperature of the gas by 1^@ C . Calculate the speed v_0.[k = 1.38 xx 10^-23 J//K and N_(A) = 6.02 xx 10^23 //mol] .