Heat obtained by the initially cooler material must be equal to the heat lost, according to the Law of Conservation of Energy.Two materials having different temperatures when brought in contact, heat transfers from the warmer to the colder body until equilibrium.When the mass of the given substance is unity, we call it the specific heat capacity of the substance that is the total energy required to raise the temperature of unit mass of a substance by 1☌. Specific Heat Capacity is measured in cal g - 1(☌) - 1or J kg - 1 K - 1.Thus, by the law of conservation of energy, the colder substance temperature gradually increases.When brought in contact, heat energy flows from hotter to colder substances.Initially, both these substances are at different temperatures. Consider two similar substances kept close to one another.Heat Capacity of a substance is the total amount of heat required to raise the temperature of a mass of a substance by 1☌. Let us understand this with an easy example. Specific Heat Capacity by Method of Mixtures
Important Links Related to Specific Heat Capacity of Water The direction of heat flow is always from the hotter substance to the colder substance and this exchange occurs till both substances attain equal temperature. Thus by the law of conservation of energy, the heat lost by the initially hot substance should be equal to the initially cold substance. The amount of heat energy needed to change the heat content of 1g of a substance by 1 0C is termed the specific heat. The heatemitted compensates for the cooling effect of heat loss from the liquid water.
Temperature drops as heat is released, and the water molecules slow down their vibrational activity.
0 kommentar(er)
