solace28 said:mechanical (work) unit is J/kgK
Heat unit is kcal/kgK
what is this mechanical (work) unit, Heat unit ? I'm not able to understand it.
please elaborate
The unit of measurement for specific heat is joules per kilogram Celsius (J/kg·C). This measures the amount of energy required to raise the temperature of 1 kilogram of a substance by 1 degree Celsius.
Specific heat and heat capacity both measure how much heat is needed to raise the temperature of a substance, but specific heat is measured per unit mass while heat capacity is measured per unit volume. In other words, specific heat takes into account the mass of the substance, while heat capacity does not.
The specific heat of a substance remains constant regardless of temperature. However, the amount of heat required to raise the temperature of a substance increases as the temperature increases.
The specific heat of a substance can be calculated by dividing the amount of heat required to raise the temperature of the substance by the mass of the substance and the change in temperature. This can be represented by the equation Q = mcΔT, where Q is the heat, m is the mass, c is the specific heat, and ΔT is the change in temperature.
Specific heat is an important concept in thermodynamics because it helps us understand how different substances respond to changes in temperature. It also plays a crucial role in calculating the amount of heat needed for various processes, such as heating or cooling a substance, and in determining the efficiency of energy transfer in systems.