human kinetics

Introduction - Processes by which substances are transformed to one or several products are called chemical reactions. Chemical processes that occur in the presence of light, like sunlight, are called photochemical reactions. These processes can occur naturally or under controlled conditions in the..

If the pressure is kept constant, volume of a fixed mass of a gas increases with increase of temperature, measured on Kelvin or Absolute scale, and it decreases with the decrease in temperature. One litre of a gas at 273 K (Kelvin unit) will double in volume to 2 litres, if the temperature is dou..

The Second Law of Thermodynamics - Experimental evidence suggests strongly that it is impossible to build a heat engine that converts heat completely to work (an engine with 100% thermal efficiency). This impossibility is the basis of one statement of the second law of thermodynamics, as follows: I..