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5/25 MCQs for:
Heat

The thermal conductivity of aluminum is twice that of brass. Two rods (one aluminum and the other brass) are joined together end to end in excellent thermal contact. The rods are of equal lengths and radii. The free end of the brass rod is maintained at 0°C and the aluminum's free end is heated to 200°C. If no heat escapes from the sides of the rods, what is the temperature at the interface between the two metals?

On his honeymoon, James Joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on Mount Blanc. What maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m?

The reason ocean temperatures do not vary drastically is that:

A 0.600-kg piece of metal is heated to 100° C and placed in an aluminum can of mass 0.200-kg which contains 0.500 kg of water initially at 17.3° C. The final equilibrium temperature of the mixture is 20.2° C, what is the specific heat of the metal?

A block of ice at 0eC is added to a 150-g aluminum calorimeter cup that holds 200 g of water at 100C. If all but 2.00 g of ice melt, what was the original mass of the block of ice?