what expands when heated
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Does Water Expand or Contract When Heated? Quick Answer. Water contracts when it is heated from freezing point to 7 degrees above and begins to expand as it heats up further. Water expands when it freezes, as well as when it heats up, except for the 7 degrees above freezing where it contracts. Keep Learning.
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- Mass of the object remains the same, however. Solids, liquids and gases all expand when heat is added. When heat leaves all substances, the molecules vibrate slower. The atoms can get closer which results in the matter contracting. Again, the mass is not changed.
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- Answers. Best Answer: when air is compressed, either rapidly or slowly, work is done on the air by some outside force, this increases the internal energy of the gas which causes its molecules to move more rapidly and this translates into a higher temperature. Source(s): kuiperbelt2003 · 6 years ago.
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- When muscle foods are heated, the protein in the myofibrils and the connective tissue undergo changes in configuration, leading to structural changes and contraction of the muscle tissue. Spalt only exists in flight muscles and is responsible for the specific architecture of their myofibrils.
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- As heat is applied to a pan of water, the temperature of the water increases until it reaches 100°C (212°F). At this temperature, additional heat causes the water to bubble vigorously and transforms liquid water into gaseous water, or steam. Most organic liquids will behave in a similar fashion.
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Why does water expand when heated? Report Abuse. 1  water does expand when it freezes because water is polar and so pushing the molecules close together actually makes them feel a force of repulsion, hence they move apart, so it expands. 2  It actually has a LOCAL MAXIMUM point in its density as a function of temperature curve.
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- The short answer to your question is no. In a few cases, heat actually makes some things contract rather than expand. The best example is water. When ice is heated from 0 to 4 degrees C, it actually contracts.The water molecules get closer together and the water occupies less volume.he short answer to your question is no. In a few cases, heat actually makes some things contract rather than expand. The best example is water. When ice is heated from 0 to 4 degrees C, it actually contracts.
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Charles's law An animation demonstrating the relationship between volume and temperature. Charles's law (also known as the law of volumes) is an experimental gas law which describes how gases tend to expand when heated. A modern statement of Charles's law is.
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- Long Answer: Normally, things expand when heated and contract when cooled. Water is an exception to this rule. Even though water does expand when heated and contract when cooled at most temperatures, water expands when cooled and contracts when heated between 4 degrees Celsius and 0 degrees Celsius. Science Quote.
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- Expansion Tanks - How a Diaphragm Expansion Tank Works. When water is heated in a closed system it expands. Water is not compressible, therefore, the additional water volume created has to go someplace. When an expansion tank is installed the excess water enters the pre-pressurized tank (figure 1). As the temperature and pressure reaches its maximum, the diaphragm flexes against an air cushion (air is compressible) to allow for increased water expansion (figure 2).
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- The increase in the volume of matter with increasing temperature is called expansion. When cooled down, most matter decreases in volume and increases in density. This decrease in volume is called contraction. This horse thermometer has a digital readout.
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Physics terms definitions A2 Gas expands, volume increases (surface area increases) as P = F/A. Clearly force also needs to increase to keep P constant. A greater force means a greater rate of change of momentum, so the molecules must have a greater mean kinetic energy. Therefore the gas must be at a higher temperature meaning heat energy (Q) must be supplied.
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Why does water expand when heated? it expands when heated because the molucules are moving faster and need room to move. it contracts when frozen because the mocules dont move at all, so there need not be any room in between them. #2 It actually has a LOCAL MAXIMUM point in its density as a function of temperature curve.
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Changing Temperature, Changing Density Most matter increases in volume when it gets hotter. For example, if an iron rod is heated, it will get longer and fatter and its density will decrease. This happens because the mass of the rod stays the same, but its volume increases.
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- Expansion Tanks-How a Diaphragm Expansion Tank Works. When water is heated in a closed system it expands. Water is not compressible, therefore, the additional water volume created has to go someplace. When an expansion tank is installed the excess water enters the pre-pressurized tank (figure 1).
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Boiling liquid expanding vapor explosion 1 As the liquid changes to a gas it expands-this expansion in a vented container would cause the gas and liquid to take up more space. 2  In a sealed container the gas and liquid are not able to take up more space and so the pressure rises.
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- Nitrogen doesnt expand with heat. Air does. They are mixable, but it's best to just stick with one or the other. The air in the atmosphere is approx 78% … nitrogen anyway.
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Tomb of the Unknowns Also marked by a high degree of ritual and joint service participation are wreath layings that occur during state visits. A visiting head of state will pay formal respects to the sacrifice of America's veterans in foreign wars by placing a wreath before the Tomb.
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- as the flames heat the gases in the balloon the volume of the gases increases at constant pressure the volume of all gases increases with increasing temperatures is this statement a scientific...
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- Muscles are heated in 2 ways. When ATP is broken down for muscular contractions, the majority of energy released is actually thermal energy thus heating the intramuscular envi…ronment. The friction of muscle proteins as they contract also produces a certain amount of heat.
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- The high-energy ions then transfer part of their energy to the plasma particles in repeated collisions, thus increasing the plasma temperature. 3: Magnetic Compression A gas can be heated by sudden compression.
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- * one jar should be suitable for hot water – large coffee plungers with handle are ideal. ** if possible, use boiling water from a kettle – colouring the water is optional. Brief description: this demonstration provides clear visual evidence that air expands when it is heated. It can be used to explain why hot air rises and how wind is produced by heat energy from the Sun.
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What happens to matter when its temperature increases? If the pressure of a gas is held constant, its volume is proportional to the temperature. As the temperature increases, the atoms move faster and require more space so that they strike the walls of the container with the same net force. The volume increases. If the temperature of a gas is held constant, its pressure is inversely proportional to the volume. If the volume of a gas is decreased, then the same number of atoms moving at the same speed (because the temperature has not changed) will strike the walls of the container more often.
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- Water is not like other liquids. It isn't, well, a normal liquid. In other liquids, the basic principle holds true that heated liquids expand and cooled liquids contract. But water doesn't exactly work the same way. Water does expand when heated and contracts when cooled, but not at all temperature levels. Water has a magic range where the rules do not apply. The main reason for this difference is its makeup. Water is made up of hydrogen and oxygen, and they exist as a loose bond. The range that is different is between 0 and 4 degrees Celsius. Water at any other temperature would expand when it is heated, and contract when cooled. However, at 4 degrees Celsius, water is at its most contracted state, but it isn't frozen. It doesn't freeze until zero degrees Celsius.
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What Happens to Air When It Is Heated? Quick Answer. When air is heated it either increases in volume, increases in pressure or both, depending on the conditions. Air is composed of several different gases, most notably nitrogen, oxygen and carbon dioxide, but the particular gas involved does not matter.
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Muscles of respiration During inhalation, the diaphragm contracts, so that its center moves caudally (downward) and its edges move rostrally (upward). This compresses the abdominal cavity, raises the ribs upward and outward and thus expands the thoracic cavity.