题目
题目

Chemistry (H) - Varnold - Preparatory Academy - 2nd Semester - 2024/2025 2025 Thermochemistry Practice Test

单项选择题

How can you determine the enthalpy for a reaction in an aqueous solution?

选项
A.Calculate using the specific heat of each of the reactants.
B.Mix the reactants in a calorimeter and measure the temperature change.
C.Calculate using the mass of the reactants and the solubility constant.
D.The enthalpy change for this type of reaction cannot be determined.
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标准答案
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思路分析
Question restatement: How can you determine the enthalpy for a reaction in an aqueous solution? Option 1: Calculate using the specific heat of each of the reactants. This approach is flawed because enthalpy changes in solution are typically determined from the heat absorbed or evolved by the entire system including the solution, not by summing the specific heats of the pure reactants. In aqueous reactions, the rele......Login to view full explanation

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