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What 3 changes of state absorb thermal energy?
Melting, evaporation, and sublimation are changes of state that absorb thermal energy. During these processes, the particles in a substance gain energy to break intermolecular bonds and overcome attractive forces between them, resulting in an absorption of thermal energy.
What happens to the speed of molecules as they absorb heat?
As molecules absorb heat, their kinetic energy increases, causing them to move faster. This increased speed leads to higher temperatures and can result in changes of state, such as melting or boiling, depending on the substance.
What processes absorb sensible heat?
Processes such as melting, boiling, and sublimation absorb sensible heat. Sensible heat is the heat required to change the temperature of a substance without a change in phase. When a substance undergoes these processes, it absorbs energy to break intermolecular forces and change its state.
If you were trying to find a substance that increases in temperature rapidly you should choose a substance with?
A substance with a low heat capacity.A substance with a low heat capacity.A substance with a low heat capacity.A substance with a low heat capacity.
How can you tell if something is a good insulator based on its specific heat?
Specific heat is a measure of how much heat energy a substance can absorb before its temperature changes. Typically, substances with higher specific heat are better insulators because they can absorb more heat energy without changing temperature quickly. Therefore, a substance with a higher specific heat is usually a good insulator.
What 3 changes of state absorb thermal energy?
Melting, evaporation, and sublimation are changes of state that absorb thermal energy. During these processes, the particles in a substance gain energy to break intermolecular bonds and overcome attractive forces between them, resulting in an absorption of thermal energy.
What happens to the speed of molecules as they absorb heat?
As molecules absorb heat, their kinetic energy increases, causing them to move faster. This increased speed leads to higher temperatures and can result in changes of state, such as melting or boiling, depending on the substance.
Which state changes are exothermic and endothermic?
freezing is exothermic, melting is endothermic, evaporation is endothermic, condensation is exothermic.
To change from solid to liquid?
To change from solid to liquid, a substance needs to absorb heat energy to weaken the intermolecular forces holding its particles together. This process is known as melting or fusion. The temperature at which this change occurs is called the melting point.
What processes absorb sensible heat?
Processes such as melting, boiling, and sublimation absorb sensible heat. Sensible heat is the heat required to change the temperature of a substance without a change in phase. When a substance undergoes these processes, it absorbs energy to break intermolecular forces and change its state.
During which processes do particles of matter absorb energy?
Particles of matter absorb energy during processes such as heating, chemical reactions, and phase changes (like melting or vaporization). In these processes, particles gain energy that causes them to vibrate faster, move more quickly, or break intermolecular bonds.
How does the relationship between wavelength and absorbance impact the absorption spectrum of a substance?
The relationship between wavelength and absorbance affects the absorption spectrum of a substance because different substances absorb light at specific wavelengths. As the wavelength of light changes, the absorbance of the substance also changes, resulting in a unique absorption spectrum that can be used to identify the substance.
What is a substance is water?
A substance which absorb a great quantity of water.
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 happens to the melting particles?
When particles reach their melting point, they absorb enough energy to transition from a solid to a liquid state while maintaining their molecular structure. During melting, the particles gain kinetic energy, causing them to vibrate more rapidly and move further apart, which leads to the solid substance turning into a liquid.
Which processes do particles of matter absorb energy?
condensation and melting
If you were trying to find a substance that increases in temperature rapidly you should choose a substance with?
A substance with a low heat capacity.A substance with a low heat capacity.A substance with a low heat capacity.A substance with a low heat capacity.
