🌡️ 量热计算器（q = mcΔT）Calorimetry Calculator (q = mcΔT)

使用说明与常见问题How-to & FAQ

「量热计算器（q = mcΔT）」是什么？What is the Calorimetry Calculator (q = mcΔT) tool?

按 q = m·c·ΔT 计算吸收或放出的热量，或由热量反求质量、比热容或温度变化；还可以计算两种物质混合后的最终温度（不考虑热损失和相变）。Use q = m·c·ΔT to find the heat absorbed or released, or solve for mass, specific heat or temperature change; or find the final temperature when two substances are mixed (no heat loss or phase change).

如何使用「量热计算器（q = mcΔT）」？How do I use the Calorimetry Calculator (q = mcΔT) tool?

在「量热计算器（q = mcΔT）」中，填写「求解」、「质量 g」、「比热容 J/(g·K)（水 4.184）」、「温度变化 ΔT（K 或 °C）」、「热量 q（J）」等参数，结果会随输入实时计算并显示在下方。In the Calorimetry Calculator (q = mcΔT): Fill in "Solve for", "Mass g", "Specific heat J/(g·K) (water 4.184)", "Temperature change ΔT (K or °C)", "Heat q (J)"; results are recalculated instantly as you type.

用的是什么公式？What is the formula?

q = m × c × ΔT。q 为热量（J），m 为质量（g），c 为比热容 J/(g·K)，ΔT = 末温 − 初温。ΔT 用 K 和 °C 数值相同。q = m × c × ΔT, with heat q in J, mass m in g, specific heat c in J/(g·K) and ΔT = final − initial temperature (the same number in K or °C).

水的比热容是多少？What is water's specific heat?

液态水在 25 °C 约 4.18 J/(g·K)；4.184 J 也是热化学卡路里的定义（1 cal = 4.184 J），工具的 cal 换算用这个值。Liquid water is about 4.18 J/(g·K) at 25 °C; 4.184 J is also the definition of the thermochemical calorie (1 cal = 4.184 J), which the tool uses for cal.

混合温度怎么算？How is the mixing temperature found?

热量守恒：m₁c₁(T − T₁) + m₂c₂(T − T₂) = 0，所以 T = (m₁c₁T₁ + m₂c₂T₂) ÷ (m₁c₁ + m₂c₂)。Energy balance: m₁c₁(T − T₁) + m₂c₂(T − T₂) = 0, so T = (m₁c₁T₁ + m₂c₂T₂) ÷ (m₁c₁ + m₂c₂).

计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?

「量热计算器（q = mcΔT）」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The Calorimetry Calculator (q = mcΔT) uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.

「量热计算器（q = mcΔT）」免费吗？需要注册吗？Is the Calorimetry Calculator (q = mcΔT) free? Do I need an account?

「量热计算器（q = mcΔT）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Calorimetry Calculator (q = mcΔT) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.