Ice and Hot Water Mixing · 200 Puzzling #72

Physics · phase-transitions · first-law

Problem

100\;\text{g}

block of ice at

0^\circ\text{C}

is dropped into

200\;\text{g}

of water at

80^\circ\text{C}

in an insulated container. Find the final temperature. Use

L_f = 334\;\text{J/g}

c_w = 4.18\;\text{J/(g}\cdot\text{K)}