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Why may the temperature of a substance change when energy is added?
Thermal energy of a substance is determined by the movement of the molecules and the potential energy of the arrangement of molecules. Heat transfer will stop when thermal equilibrium is reached. It depends upon the substance how long that takes.
When a physical changes occurs new substance are formed?
False. In a physical change, the substance remains the same even though there may be a change in appearance or state. The molecules of the substance do not rearrange themselves to form a new substance.
When the molecules in a body move with increased speed is it possible that the body will change from a gas to liquid or gas to a solid or liquid to a solid or liquid to a gas?
Molecules in a solid are tightly packed together and therefore have very low average kinetic energy. However, if you add energy to the system you are increasing the random motion of molecules and the intermolecular distance within the molecules increases thereby changing the substance into a liquid state. Same is true when going from liquid to gaseous state of matter. So only the liquid to gas phase change could occur, if all other conditions remain the same.
How do energy and changes in energy change the state of matter?
Energy can change the state of matter by breaking or forming intermolecular bonds. Adding energy to a substance can overcome the forces holding the molecules together, leading to a phase change (solid to liquid, liquid to gas). Removing energy from a substance can cause the molecules to come closer together, resulting in a phase change in the opposite direction.
When the molecules in a body move with increased speed its possible that the body will change from agas to a liquid gas to a solid liquid to a solid liquid to a gas?
When the molecules in a body move with increased speed, it is possible for the body to undergo changes in state based on the amount of energy present. As molecules move faster, they may transition from a solid to a liquid, and then from a liquid to a gas due to the increase in kinetic energy. This change in state is a result of the balance between intermolecular forces and thermal energy affecting the arrangement of particles in the substance.
Why may the temperature of a substance change when energy is added?
Thermal energy of a substance is determined by the movement of the molecules and the potential energy of the arrangement of molecules. Heat transfer will stop when thermal equilibrium is reached. It depends upon the substance how long that takes.
Do substance like molecules change during a physical change?
No the substances like molecules donot chane during physical change .
How much molecules in a body move with increased speed it's possible that the body will change from a - Google Search?
How much molecules in a body move with increased speed it's possible that the body will change from a
How will the mass of a pure substance be affected when the volume is increased?
The mass of a pure substance will remain constant even if the volume is increased. The mass of a substance is an intrinsic property that does not change with changes in volume.
Why is there no chemical equation to describe what happens when water evaporates?
That's because there is no chemical change. In most cases, there is no chemical change when a substance evaporates. The exception is very long molecules, which may break apart during evaporation.
When a substance undergoes a physical change what does not a change?
The chemical make up of a substance does not change. It must remain the same combination of atoms or molecules to be considered only a physical change.
What happens to the atom or molecules of a substance if it melts?
Nothing. Melting is a physical change and does not alter the chemical composition of a substance.
Describe the change in the position of molecules that takes as a material melts?
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What happens to most substances when they are heated?
When substances are heated, typically their molecules gain energy and begin to move more rapidly. This increased movement can cause the substance to expand, change phase (from solid to liquid or gas), or even chemically react to form new substances. The specific changes depend on the substance's properties.
Is hair being bleached with hydrogen peroxide a chemical property?
Hair being bleached with hydrogen peroxide is a chemical change, not a chemical property. Chemical properties describe how a substance reacts with other substances to form new substances, while a chemical change involves the actual rearrangement of atoms and molecules in a substance. In this case, hydrogen peroxide is breaking down the pigment molecules in the hair, causing it to change color.
When a substace is heated how does the molecular motion change?
When a substance is heated, the molecules within it absorb energy and increase their kinetic energy, causing them to move more rapidly. This increased molecular motion leads to increased collisions between molecules and a higher overall temperature of the substance.
What does not change when a substance changes matter?
The chemical composition of the substance does not change when it changes its state of matter. The arrangement of atoms and molecules may vary, but the elements present in the substance remain the same.
