Answer in Physics for Jerick Escueta #162638
A workman needs to know the temperature inside the oven. He removes 2.0-lb. iron bar from the oven and places in a 1-lb aluminum container partially filled with 2.0 lb. of water. If the temperature of the water rises from 70 to 120oF, what was the oven temperature?
Specific heat of iron: 0.11 Btu/(lb·°F)
Specific heat of aluminum: 0.258 Btu/(lb·°F)
Heat from iron as it cools:
Heat to the container and water as they heat up:
The heat flows result in 0: