An aluminum sample has a mass of 80.01 g and a density of 2.70 g/cm3. according to the data, to what number of significant figures should the calculated volume of the aluminum sample be expressed?

Answer : The volume of aluminium sample should be

Explanation :

Density : It is defined as the mass contained per unit volume.

Formula used :

Given :

Mass of aluminum = 80.01 g

Density of aluminium =

Now put all the given values in the above formula, we get :

Therefore, the volume of aluminium sample should be

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.