I need help with all 4.

Which of the following statements is true about planck’s law

Embryos of different species look very similar, which shows that the organisms share a ancestor.

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that