States of Matter / पदार्थ की अवस्थाएँ - गैस एवं द्रव
JEE Main & Advanced
Chemistry
States of Matter / पदार्थ की अवस्थाएँ - गैस एवं द्रव
Question Bank
Numerical Value Type Questions - Gaseous State
question_answer
At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed of gas Y at 60 K. The molecular weight of the gas Y is-