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Does the formation of frost release heat and warm the surroundings?
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Does the formation of solid liquid solutions release or absorb heat?
It could do either.
Does the formation of solid-liquid solutions release or absorb heat?
It could do either.
What is indicated by formation of gas precipitate release of heat or a color change is?
chemical change
If heat is produced by a chemical system?
An equal amount of heat will be absorbed by the surroundings.
If heat is released by chemical systems an equal amount of heat will be?
absorbed by the surroundings
An object is warmer than its surroundings it will?
Release its heat energy until the object (system) and the surroundings are the same temperature.
Is the crystallization of the sodium acetate an endothermic or exothermic reaction?
the release of heat from the system to the surroundings it exothermic
What is it called when a substance releases energy to its surroundings?
There are two ways that a substance ( called the System ) may release energy to the Surroundings :( 1 ) Heat may be released by heat transfer from the System to the Surroundings. Heat transfer from the System to the Surroundings requires the System temperature to exceed the temperature of the Surroundings and the presence of one or more heat transfer modes ( conduction, convection, and/or radiation.( 2 ) Work done by the System of on the Surroundings corresponding to a force moving through a distance, such as when the substance expands. Substance confined to a cylinder with a piston may expand, doing work on the Surroundings.
Does tile give off heat or cold?
HOT and COLD are relative terms, not absolutes. I can feel cold when other people are hot. Heat is an absolute. It is a form of energy. Tile will absorb heat if the surroundings are at a higher temperature. Tile will release heat if the surroundings are at a lower temperature. Just like water. Water at 1000C will release heat to a room of 220C, but water at 50C will absorbe heat from the same room. Nothing gives off cold. That is just the relative feeling of something that is absorbing a lot of heat from its surroundings.
Does the formation of solid liquid solutions release or absorb heat?
It could do either.
Does the formation of solid-liquid solutions release or absorb heat?
It could do either.
What is indicated by formation of gas precipitate release of heat or a color change is?
chemical change
What change involves the release of heat energy into the surroundings?
Both condensation from gas to liquid, and freezing from liquid to solid, do.
Is combustion of magnesium reaction with exothermic or endothermic?
If you mean the enthalpy of formation then no, it is exothermic.
Why vacuum flask keep cold liquids cool better than hot liquids warm?
It is due to heat transfer by radiation. You must first understand all objects emit some radiation, even room temperature items, but hotter items release greater radiation. With a hot liquid, the vacuum flask is releasing heat via radiation (radiant heat) outwards into the surroundings, the surroundings mostly absorb this radiant heat, therefore the radiant heat is constantly lost to the surroundings. However, with a cold liquid the radiant heat is transferred from the surroundings to the vacuum flask, where the vacuum flask is a relatively small "target" for the radiant heat to strike. Therefore the cold liquid only receives a small amount of radiant heat from the surroundings and thus changes temperature more slowly. Think of it this way: The surroundings is a very very large "target" for the heat released from the thermos to strike, while the thermos is a relatively tiny target for the heat from the surroundings to strike, thus it is easier for the thermos to lose heat than it is to absorb heat from the surroundings.
An object can heat up if?
it has less heat than the surroundings
What is the heat of formation of SO2?
The standard heat/enthalpy of formation of SO2 is -296.8 KJ
