EjerciciosFyQ

Heat transfer (3776)

F_y_Q — 2016-10-18T12:50:31Z

Is there heat transfer between two bodies with different temperatures when they are put in contact?

- Energy / Heat, Energy transfer, Conduction, SOLVED

Heat transfer in fluids (2909)

F_y_Q — 2015-01-05T05:55:41Z

How is heat transferred in the air?

Heat is transferred in a fluid (liquids or gases) by convection, which involves the movement of matter. This means that higher temperature air moves from one point to another until the system reaches the thermal equilibrium.

Defining pressure, heat and the Molecular Kinetic Theory for gases

F_y_Q — 2012-11-05T07:22:32Z

Define, with your own words, the following concepts:

a) Pressure

b) Heat

c) Molecular Kinetic Theory for gases.

a) Pressure: It is the number of collisions of the particles of a system enclosed in a container, per unit area. It is measured in pascals (Pa) in the International System of Units (SI).

b) Heat: Heat is a form of energy that is transferred between systems or objects with different temperatures. It flows from the hotter object to the cooler one until thermal equilibrium is reached.

c) Molecular Kinetic Theory for gases: The Molecular Kinetic Theory for gases explains the behavior of gases in terms of the motion of their particles. It states that gas pressure is due to the collisions of molecules with the walls of the container, and the temperature of the gas is proportional to the average kinetic energy of the molecules.