The mass per volume measure of the substance is said to be its density.
The formula of density is:
Mass of mercury sample = (given)
Volume of mercury sample = (given)
Substituting the values in formula (1)
Hence, the density of mercury is .
A. Hg (Mercury)
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.