Question

A large punch bowl holds 3.50 kg of lemonade (which is essentially water) at 25.0 ° C. A 5.70x10 2-kg ice cube at -12.0 °C is placed in the lemonade. What is the final temperature of the system? Ignore any heat exchange with the bowl or the surroundings. What is the amount of ice (if any) remaining

Answer 1

$$c_im_i(t_{f}-t_{ii})+\lambda m_i+c_wm_w(t_{f}-t_{iw})=0,\\\space\\ t_f=23°\text{C}.$$