Sunday, March 29, 2020
Q in Chemistry Heat Exchange
Q in Chemistry Heat ExchangeQ in Chemistry Heat Exchange is what we used to call the Q factor. The Q factor is used as a first order calculation for a free energy which is used in the process of heat exchange.The heat is transferred from one system to another by means of a fluid movement that passes through the fluids and the molecules of the two systems. In general, if we think about two similar objects moving back and forth in the same direction they will just go right past each other. This is called the static energy in Newtonian mechanics. The energy can be used to do either work or to create entropy.In physics we see two basic types of heat transfer - conduction and convection. Convection is simply a breeze passing between the objects and this is what we call wind. The work done in the process of heat exchange is the quantity of heat that is given off in the process of transfer. So this work is dissipated. There are other things that have to be taken into account such as the acc eleration of the transfer as well as the weight of the object that is being moved.For instance, if you pour boiling water on a stone and then put a cloth over it and continue to apply the heat you will find that the stone slowly becomes a lump. If you continue to heat it and place the stone on the cloth, the stone will begin to crack and fissure. In addition, the mass of the stone may begin to change temperature.Heat can also be transferred from one place to another by means of an electric current. Electrical currents in turn transfer the heat from one place to another. When the currents change the temperature of the objects they are directed to move to the location where the current is at the moment. The difference in temperature will increase the amount of work that has to be done in the process of heat exchange.In short heat is a term used to describe the change in temperature of the objects that are involved in the process of heat exchange. When energy is applied to the objects in the electrical field which is created will distribute the heat that is given off into the environment around the object. Also, this is where the term, electro-chemical transfer of heat comes from.The Q factor is used to determine the quantity of work that has to be done in the process of heat exchange. This works best when the subject of the transfer is a gas but can be also applied to solids if the subject is large enough.The Q factor is usually a multiple of one hundred and is determined by adding together the intensity of the heat and the mass of the particles that are involved in the transfer. It is important to realize that a Q factor is not a single number, but rather it is a number which varies depending on the size of the particles involved in the transfer.
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