Math  /  Algebra

Question\text{Calculate the heat (in kJ) associated with the cooling of } 392 \, \text{g of mercury from } 74.5^{\circ} \text{C to } 12.0^{\circ} \text{C}. \text{ Be sure your answer has the correct number of significant digits.} \\ \text{Note: Reference the Phase change properties of pure substances table for additional information.} \\ \text{Specific heat capacity of mercury: } 0.139 \, \text{J/gK} \\ \Box \, \text{kJ} \, \Box \times 10 \\

Studdy Solution
Ensure the answer has the correct number of significant digits. The least number of significant digits in the given values is 3 (from the mass of mercury, 392 g).
Thus, the heat associated with the cooling of mercury is:
3.41kJ\boxed{-3.41 \, \text{kJ}}

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