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What else can I help you with?
What is needed to create change in a system?
The amount of energy is used to make the change.
The amount of power derived from a device or system is its?
That amount is always less than the energy you put into the system. Divide the amount of useful energy you get from a system by the amount of energy you put into it, and you find the system's 'efficiency'.
True or false every chemical or physical change in matter includes a change in energy?
True. Every chemical or physical change in matter involves a change in energy. Energy is either absorbed or released during these processes, leading to a change in the internal energy of the system. This principle is known as the first law of thermodynamics, which states that energy cannot be created or destroyed, only transferred or converted from one form to another.
What is the total amount of kinetic energy and potential energy in a system?
Internal energy at the microscopic level and thermodynamic or mechanical energy at the macroscopic level.
When a car burns fuel which of following best describes what happens to the energy of the system?
Chemical energy is transformed to mechanical energy and some heat energy
What is the amount of energy which a system has to have in order for a chemical change to take place?
That is officially called the activation energy.
Energy is what in a chemical change?
In a chemical change, energy is either absorbed or released. When bonds are broken, energy is absorbed (endothermic reaction), and when bonds are formed, energy is released (exothermic reaction). Overall, the total energy of the system may change during a chemical reaction.
The amount of energy available to do work after a chemical reaction has occurred is called?
The amount of energy available to do work after a chemical reaction has occurred is called free energy or Gibbs free energy. It represents the maximum amount of useful work that can be obtained from a system at constant temperature and pressure.
What is the relationship between chemical potential and Gibbs free energy in a chemical system?
In a chemical system, the chemical potential is related to the Gibbs free energy. The chemical potential represents the energy required to add one molecule of a substance to the system, while the Gibbs free energy is a measure of the system's overall energy available to do work. The relationship between the two is that the change in Gibbs free energy of a reaction is related to the change in chemical potential of the reactants and products involved in the reaction.
What is needed to create change in a system?
The amount of energy is used to make the change.
What is the best definition of the change in enthalpy (h)?
The change in enthalpy (H) is the amount of heat energy absorbed or released by a system during a chemical reaction at constant pressure. It represents the difference in the total energy of the products and reactants.
A graph plotting the energy change of a system as a chemical reaction proceeds is called what?
Energy diagram.
Lighting a match changes chemical energy into heat and light The total amount of energy?
The total amount of energy remains constant, but it is transformed from chemical energy in the match head to thermal energy (heat) and electromagnetic energy (light) when the match is lit. This is an example of energy conservation in a closed system.
Is it true that the amount of heat in a closed system is constant?
No, it is net amount of energy in a close system is constant. Energy can change form from thermal to kinetic to electrical and so on. It is only the net amount of energy that is conserved in the close system.
What happens when matter and energy change forms within a closed system?
In a closed system, matter and energy can change forms but cannot enter or exit the system. This means that the total amount of matter and energy within the system remains constant, achieving conservation of mass and energy. The transformation of matter and energy can lead to various processes such as chemical reactions, phase changes, or conversions between potential and kinetic energy.
What is the amount of available energy that can be used to promote change do work is called?
The amount of available energy that can be used to promote change and do work is called free energy. This is the energy that is available to do useful work in a system.
In a system when energy is transformed from one form to another?
The total amount of energy in the system remains constant, as per the law of conservation of energy. Energy may change from one form to another, such as potential to kinetic, but the total energy in the system does not change.
