A50.0 g of solid co2 (dry ice) is added at -100°c to an evacuated (all of the gas removed) container with
a volume of 5.0 l. if the container is sealed and allowed to warm to room temperature (25°c) so that the
entire solid co2 is converted to gas, what is the pressure inside the container?

i do not get it   at all

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.