In this study, researchers pit five different fitness watches against a metabolic calorimetry chamber, and measured estimated physical activity calorie expenditure.

在这项研究中，研究人员将五种不同健身手表与代谢量热室进对比，并测量了估算体力活动卡路里支出。

Any way that we can figure out the change of heat between the products and the reactants will work just as well, and that's where calorimetry comes in.

无论我们用什么方法来确定产应之间热量变化通，而这正是量热法发挥作用地方。

Scientists have actually done on the calorimetry footwork for us, so we can actually predict how much heat a chemical reaction will produce.

科学家们实际上已经为我们完成了量热法步法，因此我们实际上可以预测化学应会产生多少热量。

And we measure enthalpy with a weird little science called calorimetry.

我们用一种叫做量热法奇怪小科学来测量焓。

So there you go, the calorimetry formula gave an absolute enthalpy change of 6.2 kJ, while Hess's Law gives a change of 5.67 kJ. So, why the difference?

所以就是这样，量热法公式给出绝对焓变是6.2千焦， 而赫斯定律给出变化是5.67千焦。 那么，为什么会有这样差异呢？

And finally, you learned some potential sources of error related to calorimetry.

最后，你了解了一些与量热法相关潜在误差来源。

Calorimetry is the science of measuring the change in heat associated with a chemical reaction.

量热法是测量化学应中热量变化科学。

When doing calorimetry, we calculate a change in heat by measuring a change in temperature, but as we've said a billion times before, heat and temperature are not the same thing.

在进量热法时，我们通过测量温度变化来计算热量变化， 但正如我们之前说过无数次， 热量温度不是同一个概念。