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当两个物体之间或者同一个物体的不同部分存在着温度差时,高温物体或者高温部分将放出热量,低温物体或者低温部分将吸收热量,直到当它们的温度相等不存在温度差时,热传递过程停止.在热传递过程中,同一个物体吸收或者放出多少热量,取决于它的质量m、比热容c和温度的变化量△t.燃料燃烧也能放出热量,燃料在燃烧放热的过
When there is a temperature difference between two objects or in different parts of the same object, the high-temperature objects or high-temperature parts will release heat, and the low-temperature objects or low-temperature parts will absorb heat until the temperature is equal when there is no temperature difference. The transfer process is stopped. In the heat transfer process, how much heat is absorbed or released by the same object depends on its mass m, specific heat capacity c, and the amount of temperature change Δt. The fuel combustion can also release heat, and the fuel radiates heat in the combustion process.