67) Main property of cutting fluid is
Related KPCL JE Mechanical Question Paper - 2018 with Answer Key
States that if two systems are both in equilibrium with a third system, they are in thermal equilibrium with each other
Zeroth law of thermodynamics : Zeroth law of thermodynamics states that, when two bodies are in thermal equilibrium with a third body. They are also in thermal equilibrium with each other.
No mechanical work is done by the system
a physical property of the material
Thermal diffusivity is defined as the ratio of the thermal conductivity to the heat capacity of a material and it measures the ability of a material to conduct thermal energy relative to its ability to store thermal energy. Thermal diffusivity is a physical property of the material.