What is the relationship between molecular motion and pressure?
The greater the molecular motion, the greater the pressure the molecules exert.
What is heat in terms of molecular motion?
Molecules are in constant motion and so they possess kinetic energy. Molecules at a higher temperature have more kinetic energy i.e. they move faster. Heat is that form of energy which is transferred from a hot body to a colder body.
Can you stop molecular motion?
Do molecules stop moving at absolute zero? Answer 1: The quick answer to your question is no, molecules do not stop moving at absolute zero. They move much less than at higher temperatures, but they still have small vibrations at absolute zero.
What is temperature of water at the molecular level?
Water is a liquid at standard temperature and pressure (25 degrees Celsius and 1 atm, for liquids). Water is is tasteless and odorless. Water is transparent in the visible part of the electromagnetic spectrum.
What is the molecular level?
When a scientist studies things on a molecular level, she’s looking at them up close, examining their cells. The adjective molecular comes up most often in biology and chemistry, and it always describes the very smallest units that make up organisms or elements.
What is h in heat transfer?
The convective heat transfer coefficient (h), defines, in part, the heat transfer due to convection. The convective heat transfer coefficient is sometimes referred to as a film coefficient and represents the thermal resistance of a relatively stagnant layer of fluid between a heat transfer surface and the fluid medium.
What is convective mode of heat transfer?
Heat convection is a mode of heat transfer by the mass motion of a fluid such as air. Heat convection occurs to the surface of an object where the surrounding fluid of object is heated and moved energy away from the source of heat.
Which has maximum value of thermal conductivity?
Diamond is the leading thermally conductive material and has conductivity values measured 5x’s higher than copper, the most manufactured metal in the United States. Diamond atoms are composed of a simple carbon backbone that is an ideal molecular structure for effective heat transfer.
How is heat transfer by radiation?
Radiation is a method of heat transfer that does not rely upon any contact between the heat source and the heated object as is the case with conduction and convection. Heat can be transmitted through empty space by thermal radiation often called infrared radiation. This is a type electromagnetic radiation .