Part C Suppose 1 kg each of water (4.19 J/gC), brick (0.90 J/gC), iron (0.46 J/g

Question

Part C

Suppose 1 kg each of water (4.19 J/gC), brick (0.90 J/gC), iron (0.46 J/gC), and plastic (1.01 J/gC) were held at the same initial temperature and heated for an equivalent amount of time. Indicate the relative final temperatures by ordering from lowest to highest resulting temperature (if using the Introtab of the PhET to help visualize the temperature changes, assume the water iron, and plastic are 1 kg in mass, and the brick has a mass of 0.5 kg). Assume no heat is lost to the surroundings.

Rank from lowest resulting temperature to highest resulting temperature. To rank items as equivalent, overlap them.

Water,   Iron, Plastic, Brick

Highest resulting temperature   Lowest resulting temperature

Water,   Iron, Plastic, Brick

Highest resulting temperature   Lowest resulting temperature

Explanation / Answer

Heat supplied, Q is same for all

m = 1 Kg for all

Q = m*C*delta T

If C is more, delta T will be less

that is if C is more, temperature change will be less

Answer:

Highest resulting Temperature : Iron

brick

plastic

Lowest resulting Temperature : water

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