Question

recall the juice cooled from 21.0 °c to 6.0 °c. what is the final temperature of the al \ice cubes\ when the system reaches equilibrium?
t_f = ? °c
+6.0 °c -15 °c
+15 °c -6.0 °c

Explanation:

Step1: Understand Thermal Equilibrium

When a system reaches thermal equilibrium, all components in the system have the same final temperature. The juice and the Al "ice cubes" are part of the same system.

Step2: Determine Final Temperature

Since the juice cooled to 6.0 °C and at equilibrium, the Al "ice cubes" will have the same temperature as the juice (because they are in the same system and thermal equilibrium means equal temperature).

Answer:

A. +6.0 °C