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Energy can change when a substance undergoes a phase change (such as melting or vaporization) or a chemical reaction. During these processes, energy is either absorbed (endothermic) or released (exothermic) as the internal structure of the substance changes. This energy change is due to the breaking or forming of bonds between atoms, resulting in a change in the overall energy content of the system.
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What information can be found in the ratio of specific heats table?
The ratio of specific heats table provides information about the ratio of the specific heat capacities of different substances. This ratio is important in understanding how substances respond to changes in temperature and energy.
When potential energy changes to kinetic energy it is called?
When potential energy changes to kinetic energy, it is called energy transformation.
When energy changes form some of the energy always when energy changes form some of the energy always changes into what?
When energy changes form, some of the energy always changes into heat. This is known as the law of conservation of energy, where energy cannot be created or destroyed, but only transferred or converted into different forms. Heat is a common byproduct of energy transformations due to inefficiencies in the process.
What happens to substances when they are heated?
When substances are heated, their molecules gain energy and move more rapidly. This increase in molecular motion can cause substances to change state (e.g. from solid to liquid), react with other substances, or decompose into simpler chemical components. Ultimately, heating a substance can lead to a variety of physical and chemical changes depending on the specific properties of the substance.
What is the changes in energy called?
Changes in energy are typically referred to as energy transformations or energy conversions, as energy changes from one form to another. This can include processes like converting electrical energy to kinetic energy in a motor or converting chemical energy in food to mechanical energy in our bodies.
When do most substances lose or gain energy?
Most substances lose or gain energy when their temperature changes.
What energy source changes a substances temperature?
Friction
How substances changes from one state to the other state?
through changes of energy
When equal amounts of energy are transferred to or from equal masses of different substances the substances will undergo different changes in temperature because of their different?
substances
When equal amounts of energy are transferred to or from equal masses of different substances the substances will undergo different changes in temperature because of their different...?
substances
What ist he function of the mitochondria?
it is the "power house" of a cell, and changes substances within the cell into energy.
What two things happen in a chemical reaction?
change in properties and changes in energy
Compare the total amount of energy before and after physical and chemical changes?
In physical changes, the total amount of energy before and after remains the same as no new substances are formed. In chemical changes, there may be a difference in the total amount of energy before and after the reaction due to the formation of new substances and the breaking or forming of chemical bonds.
Do substances absorb or release heat energy as then change from a liquid to the solid phase?
When a substance changes from a liquid to a solid it releases energy. (You take the heat out)
What are energy and chemical changes?
An energy change is where one type of energy EG kinetic is changed to another type of energy by a transducer eg electrical energy. A chemical change is where two substances react to make a new substance
Are chemical changes when substances combine or are they when substances breaking apart?
A reaction between two substances or the decomposition of a substance are chemical changes.
''what'' changes produce new substances?
chemical changes
