Calculate the change in temperature of 20 kg of water if 30 kg of aluminum is dropped in the water and the aluminum changes temperature by 20°C (Hint: use the principle of conservation of energy.) °C

asked Aug 13, 2018 3.3k views

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3 votes

Answer:

6.6°C

Step-by-step explanation:

Gabriel Matusevich answered Aug 15, 2018

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2 votes

ΔE = 0

(m_alum) (c_alum) Δt - (m_water)(c_water) Δt' = 0

(30) (897) (20) - (20)(4186) Δt' = 0

Δt' = 6.42857 °C

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