Photon energy and specific heat capacity

[Fluxthroughme]

If I use the answer given in the book for part a, I can get the correct answers for b and c. However, I do not know what I have done wrong in part a? My best guess would be that assuming the blood evaporates at 100 degrees is incorrect? The answer given in the book is $5.1*10^{-3}J$

 

[tia89]

It seems correct to me... and if they ask you to use same data as water, I also assume that using 100°C is correct as vaporization point (also because you do not have it given, and you would need it to do the problem, so it has to be 100°C).

Perhaps the book has wrong solutions, or something else is going on I can't see, but to me it is correct