Quantitative problems
Be sure to show work and label quantities. Show how units cancel.
Useful constants
334 J/g Heat of fusion (Hf) (melting or freezing)
2260 J/g Heat of vaporization (Hv) (evaporating or condensing)
2.10 J/g˚C Heat capacity (c) of solid water
4.18 J/g˚C Heat capacity (c) of liquid water

15. (4) While you were “sweating” your chemistry test, water vapor evaporates from your body, absorbing 125 kJ of energy. (Assume no temperature change). What mass of water evaporates?

Question

Quantitative problems
	Be sure to show work and label quantities.  Show how units cancel.
Useful constants
334 J/g 		Heat of fusion (Hf)  (melting or freezing)	
2260 J/g		Heat of vaporization (Hv) (evaporating or condensing) 
2.10 J/g˚C	Heat capacity (c) of solid water
4.18 J/g˚C	Heat capacity (c) of liquid water

15. (4) While you were “sweating” your chemistry test, water vapor evaporates from your body, absorbing 125 kJ of energy. (Assume no temperature change).  What mass of water evaporates?

anonymous · Answer

i know that this is more of a chemistry problem, but please help! :)