The ice or snow was solid water. The heat changed it into liquid water, such as we drink.

冰和雪都是“固态”水。热量让固态水变成了“液态”水，就是我们喝的水。

So, the flow of heat changes the temperature of a system.

因此，热流会改变系统的温度。

That means it takes much more heat to change the temperature of water compared to aluminum.

这意味着水温变化 它比铝需要更多的能量。

For reasons that will become clear later, we'll sure delta H to represent the heat change for this experiment.

由于稍后会变得清楚的原因，我们将确保 delta H 代表该实验的热变化。

Now there's a simple formula that allows us to calculate the heat change of a reaction, simply by measuring the change in temperature that occurs in a calorimeter.

现在有一个简单的公式可以让我们计算反应的热变化，只需测量量热计中发生的温度变化即可。

Water, for example, has a very high specific heat compared to, say, aluminum. That means it takes much more heat to change the temperature of water compared to aluminum.

例如，与铝相比，水具有非常高的比热。这意味着与铝相比，改变水的温度需要更多的热量。

Remember that measuring heat change is closely related to enthalpy, which we defined as the internal energy of a system plus the energy it uses to push the surroundings back and make room for its own pressure and volume.

请记住， 测量热变化与焓密切相关，我们将其定义为系统的内部能量加上它用来将周围环境推回并为自身压力和体积腾出空间的能量。