Which of the following is necessary to do a complete stoichiometric calculation? Write the mole ratio.
Add the nuclear masses of the products.
Divide the nuclear masses of the reactants.
Write the number of atoms in one mole of the product.

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .

yes the answer is total mass in unchanged   : )