# HEAT & TEMPERATURE

Mind Map by Escolapios Albacete, updated more than 1 year ago
 Created by Escolapios Albacete about 5 years ago
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### Description

Calor y Temperatura. Equilibrio Termico. Formas de transferencia de Energía.

## Resource summary

HEAT & TEMPERATURE
1 THERMAL ENERGY

Annotations:

• It is the average kinetic energy of a very large group of atoms or molecules. The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules), all of which are in constant, random motion. The rapidly moving particles constantly collide with each other and with the walls of the container. Kinetic theory explains macroscopic  properties of gases, such as pressure, temperature, viscosity, thermal conductivity, and volume, by considering their molecular composition and  motion.
2 TEMPERATURE

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• It is measure of the average kinetic energy of the particles in a sample of matter, expressed in terms of units or degrees designated on a standard scale.
2.1 Thermal Expansion

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• It is occurs when bodies increase their temperature.
2.2 Measurement
2.2.1 Scales
2.2.1.1 Celsius
2.2.1.2 Fahrenheit
2.2.1.3 Kelvin
2.2.2 Thermometers

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• Mercury Alcohol Digital Air
3 HEAT and THERMAL EQUILIBRIUM
3.1 HEAT

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• Heat is the transfer of energy from one system or body with a higher temperature to one with a lower temperature
3.1.1 Units

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• Joules Calories 1 calorie = 4.18 joules 1 joule = 0.24 calories
3.1.2 How is Transferred?
3.1.2.1 Conduction

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• - It is the process by which heat is transmitted from one point to another in a solid. - Thermal energy is transmitted but not matter.
3.1.2.1.1 Thermal conductivity

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• - Thermal conductors: they transmit energy quickly from one point to another. - Thermal insulators: they transmit thermal energy slowly from one point to another.
3.1.2.2 Convection

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• It is the process by which thermal energy is transferred from one point to another in a fluid (liquid or gas) because the fluid is moving due to the changes in their density. In this process, thermal energy is transmitted through the transport of matter

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• Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium
3.2 THERMAL EQUILIBRIUM

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• When two systems or bodies that are in a state of thermal disequilibrium com into contact, the one with the higher temperature transfers thermal energy to the one with the lower temperature until they are in a state of themal equilibrium
4 Q = m.ce.(t1-t0)
5 THERMAL EFFICIENCY & SAVING ENERGY

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