A block of metal initially at 70°C is submerged in water initially at 25°C in a coffee cup.Which of the following is true?

Question

Quizplus · Accepted Answer

When the block of metal is submerged in water, heat transfers from the metal to the water until both reach thermal equilibrium. Since the initial temperature of the metal (70°C) is higher than the initial temperature of the water (25°C), heat will flow from the metal to the water, resulting in a decrease in the temperature of the metal and an increase in the temperature of the water. The final temperature of the coffee cup will be somewhere between the initial temperatures of the metal and the water. Since the final temperature is higher than 25°C (the initial temperature of the water) but lower than 70°C (the initial temperature of the metal), the best choice is C.

A Block of Metal Initially at 70°C Is Submerged in Water