Question

total K E of a sample of a gas which contains 1*10^22 molecules is 500 cal at -73 c another sample of gas at 127 c has a total K E of 1500 cal then the number of molecules in the second sample of gas is
(a) 3*10^22 (b) 2.5*10^22 (c) 1.5*10^22 (d) 4*10^22

Answer 1

1.5×10^22 is the correct answer