2m copper bar has a mass of 3.0kg and a temperature of 250F.0g of water at 80.0C is poured on the bar and all of it turns to steam.

 A 1.2m copper bar has a mass of 3.0kg and a temperature of 250°F. 5.0g of water at 80.0°C

is poured on the bar and all of it turns to steam.

a. Calculate the heat required to change the water into vapor.

b. Calculate the change in temperature of the copper bar.

c. Calculate the change in length of the copper bar.