Explain Calorimetry and derive an expression for final temperature when two thermodynamic systems are mixed. thermodynamic of or concerned with thermodynamics More (Definitions, Synonyms, Translation)

Thermodynamics is a branch of physical science concern with transfers of heat and energy in nature, and the universe. During the heating process the amount of heat is released or absorbed by thermodynamic system. It is measured by calorimetry. When two thermodynamic systems are mixed like one at a higher temperature is come in contact with another body at lower temperature, the heat is lost by the hot body (one thermodynamic system) is equivalent to the heat gained by the cold body (another thermodynamic system). No heat is allowed to escape to the surrounding. The calorimeter is an insulated container of water. A sample is heated at high temperature (T 1 ) and immersed into water at room temperature (T 2 ) in the calorimeter. After some time both sample and water reach a final equilibrium temperature T f . In the calorimeter heat given by the water are. Q gain + Q lost = 0 Q gain = - Q lost The heat lost is given by negative sign and heat gain is denoted as positive. So, from the definition of specific heat capacity Q gain = m 2 S 2 ( T f - T 2 ) Q lost = m 1 S 1 ( T f — T 1 ) Here S 1 and S 2 specific heat capacity of hot sample and water respectively. m 2 S 2 ( T f - T 2 ) = m 1 S 1 ( T f — T 1 ) m 2 S 2 T f - m 2 S 2 T 2 = m 1 S 1 T f — m 1 S 1 T 1 m 2 S 2 T f + m 1 S 1 T f = m 1 S 1 T 1 + m 2 S 2 T 2 The final temperature T f = m 1 S 1 T 1 + m 2 S 2 T 2 m 2 S 2 + m 1 S 1 So, expression of final temperature when two thermodynamic system is mixed is m 1 S 1 T 1 + m 2 S 2 T 2 m 2 S 2 + m 1 S 1 . deals act on verbally or in some form of artistic expression More (Definitions, Synonyms, Translation)