Comment on the following statement: the temperature of all the molecules in a sample of a gas is the same.

All the molecules in a given sample of gas move with same speed.

Comment over the following statement Ga_2 O_3 is an amphoteric oxide.

Comment over the following statement The ratio of atoms can vary in differently prepared samples of a compound.

Average volume available to a molecule in a sample of ideal gas at S.T.P. is

Comment upon the following All flesh is grass.

Consider the following statements : The mean free path of gas molecules I. decreases with increase in concentration II. increases with decrease in pressure at constant temperature III. decreases with increase in molecular size Which of the above statements are correct?

The root mean square velocity of the molecules in a sample of helium is 5//7th that of the molecules in a sample of hydrogen. If the temperature of hydrogen sample is 0^(@)C , then the temperature of the helium sample is about

Comment on the statement that all ores are minerals but all the minerals are not the ores.