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A 250-g sample of copper is heated to 100∘∘C and placed into a cup containing 370 g of water initially at 30.0∘∘C. Ignore the container holding the water, assume no heat is lost or gained to the environment. 1) Find the final equilibrium temperature of the copper and water. (Express your answer to two significant figures.)

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Edufirst

Answer:

  • The final equilibrium temperature of the copper and water, rounded to two significant figures, is 34. °C

Explanation:

The solution involves the law of conservation of energy and the equation for heat, Q:

  • Q = m × Cs × ΔT

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