Question

if molecular weight of a gars is increases 4 times then what will be the velocity of sound​

Answer 1

Answer:

Sub M =4

$v \: \: \alpha \: \: 1 \div \sqrt{4} \\ v \: \alpha \: \: 1 \div 2$

Hence when we increase 4 times the molecular weight the velocity of sound decreased to is half of the value.