Chemistry (CP)

Módulo 1 · Texto Lab Safety
Módulo 2 · Texto The Scientific Method
Módulo 3 · Multimedia Law Vs. Theory
Módulo 4 · Multimedia Accuracy Vs. Precision
Módulo 5 · Texto Sig-Figs and Scientific Notation
Módulo 6 · Texto Matter
Módulo 7 · Texto Displacement
Módulo 8 · Texto Density
Módulo 9 · Texto SI Units
Módulo 10 · Multimedia Dimensional Analysis
Módulo 11 · Multimedia The Periodic Table
Módulo 12 · Texto Isotopes
Módulo 13 · Texto Nuclear Reactions
Módulo 14 · Texto Nuclear Fission and Fusion
Módulo 15 · Texto Chemical Vs. Nuclear Reaction
Módulo 16 · Texto Electron Shells
Módulo 17 · Texto Ions
Módulo 18 · Texto Solubility and Conductivity
Módulo 19 · Multimedia Types of Bonding
Módulo 20 · Texto Chemical Formulas
Módulo 21 · Texto Functional Groups
Módulo 22 · Texto Electron Domains
Módulo 23 · Texto Polarity
Módulo 24 · Texto Chemical Equations
Módulo 25 · Texto Physical Vs. Chemical Change
Módulo 26 · Texto Types of Reactions
Módulo 27 · Texto Moles
Módulo 28 · Texto Solubility and Molarity
Módulo 29 · Multimedia Miracle Moles
Módulo 30 · Texto Acids and Bases
Módulo 31 · Multimedia pH and pOH
Módulo 32 · Texto Dilutions
Módulo 33 · Texto Neutralization Reactions and Titrations
Módulo 34 · Texto Mol Ratios
Módulo 35 · Multimedia Stoichiometry
Módulo 36 · Texto Endothermic and Exothermic Energy Transfer Estás aquí
Módulo 37 · Texto Specific Heat
Módulo 38 · Multimedia Heating and Cooling Curves and Phase Change
Módulo 39 · Texto Gas Laws and Kinetic Molecular Frequency.

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Módulo 36 de 39 · Texto

Endothermic and Exothermic Energy Transfer

Enyx Jiang

Exothermic and Endothermic Energy Transfer

The chemical process you are focusing on is referred to as the system. The surroundings are anything outside of the system.

A chemical process involves energy transfer due to temperature differences between two substances.

Endothermic (cold)
- transfer of heat to the system from the surroundings
Exothermic (hot)
- transfer of heat from the system to the surroundings

Thermodynamics

Thermodynamics is the study of energy and its transformations

1st Law of Thermodynamics
- Energy is conserved- it doesn't just disappear, it is transferred
2nd Law of Thermodynamics
- Energy tends to disperse
- Entropy tends to increase
Thermal Equilibrium- when the objects in contact are the same temperature
- You can not transfer energy from a cold object to a hot object because this would concentrate the energy

Endothermic and Exothermic Energy Transfer

Chemistry (CP)

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