Question

A piece of iron at 25 °C is dropped into a glass of water at 15 °C. Which statement is correct? Heat will flow from the iron to the water in the glass until both reach the same temperature. Heat will flow from the water in the glass to the iron until both reach the same temperature. The final temperature of the water in the glass and the iron will be 25 °C. The final temperature of the water in the glass and the iron will be 15 °C.

Answer 1

When you put a piece of iron into a glass of water, whichever is hotter should start release some of the energy into the other causing the temperature to balance out and be the same. So your answer would be, Heat will flow from the piece of iron, into the the water in the glass balancing out the temperature.