Question

Heat capacity of most malerials is approximalely equal to O R equation Cy AT s true for which conditions Select one O temperatures equai to the debye temperature O temperatures below O O for temperatures above room temeprature temperatures above 0K but below the dethye temperature Heat conduction in metals is predominanty driven by Select one o both o K, 0% O none The heat lus across a material is dependent on Select one: 05% O dudT O k The bond energy curve for a mstenal s symmetc Theretore O the nanenal wil espenience contracton O me nenenal coes not eest the manerial wil eaperience no hema expansion or contracion O the material treely experience thermal espansion Vibrational energy in a material subject to heating is called o none O a photon O a phonon heat waves

Varify these solutions for me please.

Answer 1

The potential energy of a solid material is stored as heat energy. The temperature of a solid is a measure its potential energy. Heat capacity is the ability of a material to above heat from the external surroundings. It is the amount of energy required to produce a unit temperature rise. C = dQ/dT, units: J/mol - K (or) cal/mol - K. It is not an intrinsic property. At low temperatures, vibration heat contribution of heat capacity varies with, temperature as, c_v = AT^3. This is not valid above a specific temperature known as Debye temperature. The saturation value is approximately equal to 3R. Heat capacity of most materials is approximately equal to. - b) 3R The equation c_v = AT^3 is true for which condition. d) Temperature above OK but below the Debye temperature.