Monday, October 3, 2016

What happens to the pressure and temperature in an evaporator?

An evaporator is a scientific piece of equipment that converts a liquid into a gaseous phase. The temperature and pressure both increase in an evaporator.


In order for a substance to evaporate, it must gain kinetic energy.  Kinetic energy is the energy of movement or motion. Temperature is simply the average kinetic energy of all the particles of a substance. Thus, kinetic energy and temperature are directly related.  


As the particles of a liquid...

An evaporator is a scientific piece of equipment that converts a liquid into a gaseous phase. The temperature and pressure both increase in an evaporator.


In order for a substance to evaporate, it must gain kinetic energy.  Kinetic energy is the energy of movement or motion. Temperature is simply the average kinetic energy of all the particles of a substance. Thus, kinetic energy and temperature are directly related.  


As the particles of a liquid that is placed in an evaporator increase in temperature and gains kinetic energy, the particles begin to move faster and spread apart. Eventually, the particles move so far away from one another that the intermolecular forces between the particles are broken. The shape of the substance becomes less definite and its volume increases. The increased movement of the particles allows to particles to flow past one another. It is at this point that the liquid has evaporated into a gas.


Gas pressure is caused by the collision of the gas particles with the sides of the evaporator. As the particles in the evaporator gain temperature and kinetic energy, they collide with the sides of the evaporator more often. Thus, the pressure inside an evaporator also increases when a liquid evaporates into a gas.

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