heat and thermodynamics

[...]... absorbed, heat is transferred This principle is used in microwave ovens, laser cutting, and RF hair removal Other Heat Transfer Mechanisms • • Latent heat: Transfer of heat through a physical change in the medium such as water-to-ice or water-to-steam involves significant energy and is exploited in many ways: steam engine, refrigerator etc Heat pipes: Using latent heat and capillary action to move heat, heat. .. product of mass, m , and specific heat capacity, csaccordjng to: Cp = mcs or is dependelLt on the number of mqles and the molar heat capacity, cn ac.corc!i,ng to: Cp =ncn The lJlolar and specific :heat cl;lp~ci~es are dependent upon the inter,nal ~e:gr,e,es of freedom of the systep1 and not on any ext.ernal prQpel1 . per the second law of thermodynamics) . The temperature and phase of a substance subject to heat transfer are determined Heat and Thermodynamics by latent heat and heat capacity. A related. 0 (+). Heat transfer rate, or heat flow per unit time, is denoted by: . dQ Q= dt Heat and Thermodynamics 4 It is measured in watts. Heat flux is defined as rate of heat transfer. significant energy and is exploited in many ways: steam engine, refrigerator etc. • Heat pipes: Using latent heat and capillary action to move heat, heat pipes can carry many times as much heat as a