Solve: When you mix two substances, the heat gained by one substance is equal to the heat lost by the other substance. Suppose you place 143 g of aluminum in a calorimeter with 1,320 g of water. The water changes temperature by 7 °C and the aluminum changes temperature by -70.00 °C. Water has a known specific heat capacity of 4.184 J/g °C. Use the specific heat equation to find out how much heat energy the water gained (q).

38660.16 J

Explanation:

From the question,

Heat gained by water is given as

Q = cm(Δt) Equation 1

Where c = specific heat capacity of water, m = mass of water, Δt = temperature change of water.

Given: c = 4.184 J/g.°C, m = 1320 g, Δt = 7 °C.

Substitute these values into equation 1

Q = 4.184×1320×7

Q = 38660.16 J

Hence the heat energy gained by the water is 38660.16 J

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explanation:

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