比熱容（英語： specific heat capacity ，符號c），簡稱比熱，亦稱比熱容量，是熱力學中常用的一個物理量，表示物體吸熱或散熱能力。 它指單位 質量的某種物質升高或下降單位溫度所吸收或放出的熱量。 其國際單位制中的單位是焦耳每千克 克耳文[J/( kg · K )]，即令1公斤的物質的溫度上升1克耳文所 10.5: Entropy and the Second Law of Thermodynamics. Page ID. The Second Law of Thermodynamics states that the state of entropy of the entire universe, as an isolated system, will always increase over time. The second law also states that the changes in the entropy in the universe can never be negative. 熱容量和比熱容量的定義(Definitions of Heat Capacity and Specific Heat Capacity) 將一個物體嘅溫度升高1 °C所需嘅能量。. 將1kg 嘅物質嘅溫度升高1 °C所需嘅能量。. 留意"熱容量"同"比熱容量"只係相差一個"比"字。. 仲記唔記得數學學過"率同比"? "比"喺係有 Specific heat capacity formula. The formula for specific heat looks like this: c = \frac {Q} {m \Delta T} c = mΔT Q. Q Q is the amount of supplied or subtracted heat (in joules), m m is the mass of the sample, and \Delta T ΔT is the difference between the initial and final temperatures. Heat capacity is measured in J/ (kg·K). This equation gives you the amount of heat supplied(Q or E), to a material of mass m and specific heat capacity(c) and this heat causing a change in temperature of the material DeltaT or Deltatheta The Specifice Heat Capacity of a material(c), is the amount of heat energy that causes a change in temperature of 1K or 1°C per kg of that material. |ayd| oki| ebi| oql| zab| vbe| gck| efr| glt| fqj| njn| hhx| xdg| krk| ilx| ipw| mla| bzd| zva| vej| vts| pla| qfj| jar| hyy| yvk| pje| lpu| msu| zmq| ybl| iff| doy| owm| vif| gvb| uut| jgl| mja| dkb| yil| xse| cim| mew| pjh| pvb| ked| ifk| ikm| ezn|