A sample of water of unknown mass undergoes a temperature change from 59.77 C to 52.64 C with a change in heat content of -18960 Joules. What is the mass of the water? (3 Sig Figs)

Answer 1

q = 18960 J

m = ?

C = 4.184 J/gº

∆T = 7.13º

m = 18960 / (4.184)(7.13) = 636 g