I got C...I think it's right...but then u never know
0.60g propanol = 0.01 moles
.: heat released by propanol = 2021 x 0.01 = 20.21 kJ = 20210 J
Use that heat formula
H = mct
20210 = 200 (mass of water) x 4.18 x t
.: t = 24.17... (24.2)
but t is the change in temperature so u add that to...