chemistry 1 sec 2nd term chapter 4 s1

It is a branch of chemistry that is concerned with the study of the heat changes which accompany the chemical reaction

• Thermochemistry

• Physical chemistry

• Law of Conservation of Energy

• First law of Thermodynamics

The energy in any physical or chemical change can be neither created nor destroyed but is transformed from one form to another.

• Thermochemistry

• Physical chemistry

• Law of Conservation of Energy

• First law of Thermodynamics

Any change in the system’s  energy is combined with a similar change in the surrounding energy but with an opposite sign so that the total energy remains constant

• Thermochemistry

• Physical chemistry

• Law of Conservation of Energy

• First law of Thermodynamics

it doesn't exchange either energy or matter with its surroundings

• Isolated system

• Open system

• Closed system

• System

it exchanges energy but not matter with the surroundings in that form of heat or  work

• Isolated system

• Open system

• Closed system

• System

it freely exchanges matter and energy with its surroundings

• Isolated system

• Open system

• Closed system

• System

is  the part outside the system that exchanges energy or matter or both with the system

• Isolated system

• Surroundings

• Closed system

• System

is a part of the universe Chosen for study at which physical and chemical reactions happens

• Isolated system

• Surroundings

• Closed system

• System

it is a measurement of the average kinetic energy of matter molecules and it indicates the hotness and coldness of an object.

• Heat

• Temperature

• calorie

• Joule

is a form of energy  it is considered as energy transferred between two bodies of different temperatures

• Heat

• Temperature

• calorie

• Joule