What is the specific heat capacity of the heat storage brick? magnesia zirconium brick
What is the specific heat capacity of heat storage bricks? Specific heat capacity is the amount of heat absorbed or released when a unit mass of an object changes unit temperature. This is the explanation of Baidu Encyclopedia, but how to popularize it? For example, if you increase the price of magnesia bricks, you need calories, and an egg is another calorie. The specific heat capacity is used to specify these. Specific heat capacity is referred to as specific heat, which is represented by C, Q represents heat, and specific heat can be simply understood as "comparative heat".
Completely speaking, the same mass of different substances raised to the same temperature, whoever absorbs more heat, has a larger specific heat, 1 kg of water temperature rises 1 degree Celsius to absorb heat 4200 joules, 1 kg of copper temperature rises 1 degree Celsius to absorb heat 390 joules, obviously, the specific heat of water is greater than that of copper. Conversely, it is possible to compare which substances emit more heat when exothermic.
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What is the specific heat capacity of the heat storage brick?
Specific heat, like density, hardness, color, etc., is a characteristic or property of matter and is inherent to matter.
Although the formula C =Q/mΔt can be used to calculate the specific heat of a substance, it cannot be considered that the specific heat of a substance is proportional to Q and inversely proportional to m and Δt. Because the specific heat is a property of the substance, it does not change with external conditions The change, which is only related to the type and state of the substance, can be used to identify the substance. The specific heat capacity of most substances is different, but there are a few exceptions. For example, the specific heat capacity of kerosene and ice is the same. The specific heat of the same substance in the same state is the same. The specific heat has nothing to do with the mass of the object, the amount of temperature change and the amount of heat absorption (or heat release). But the specific heat of the substance will change when the state changes.
With an object of mass m, when absorbing (or releasing) heat ΔQ in a certain process, the temperature increases (or decreases) ΔT, then ΔQ/ΔT is called the heat capacity of the object in this process (referred to as heat capacity), It is represented by C, that is, C=ΔQ/ΔT. Divide the heat capacity by the mass to get the specific heat capacity c=C/m=ΔQ/mΔT. For the heat capacity and specific heat capacity of the micro process, there are C=dQ/dT and c=1/m*dQ/dT respectively. Therefore, in the finite process of the temperature of the object changing from T1 to T2, the absorbed (or released) heat Q=∫(T2,T1)CdT=m∫(T2,T1)CdT.