Question

2.0 kg of solid gold (Au) at an initial temperature of 1000K is allowed to exchange heat with 1.5 kg of liquid gold at an initial temperature at 1336K. The solid and liquid other. When the two reach thermal equilibrium will the mixture be entirely solid, or will they be in a mixed solid/liquid phase? Explain how you know. Draw two separate temp. vs. energy added diagrams to help you answer this question. can only exchange heat with each

Answer 1

Answer:

liquid phase

Explanation:

see the non-graph solution (used only formulas of the thermodynamic); the final temperature of the mixture is ~1139.701 (°K). The details are in the attachment.

Note:

$c_l \ is \ for \ liquid \ gold;\\ c_s \ is \ for \ solid \ gold.$