phy問題!!!latent heat

myloveareyou

0.3 kg of ice is dropped into 0.1 kg of water at 30度, only part of the ice is melted.
a) What is the final temperature of the mixture?
b)Find the mass of ice melted.

[S]【YU】

0 C
ml = 0.1 x 4200 x 30

myloveareyou

可唔可以list個步驟出黎 唔該哂

[S]Mangoray

"only part of the ice is melted"
即係同時有水又有冰
咁咪0度C

b energy loss = energy gain
mc delta T = ml
0.1 x 4200 x 30 = m(3.34x10^5)
m=0.038kg