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What else can I help you with?
Food must be cooled from 135 to...within 2 hours?
Food must be cooled from 135°F to 70°F within 2 hours to ensure food safety. After reaching 70°F, it must then be cooled to 41°F or lower within an additional 4 hours. This two-step cooling process helps prevent bacterial growth and ensures that food remains safe for consumption. Proper cooling practices are essential in food handling and preparation to reduce the risk of foodborne illnesses.
Which line for cooling is the hot side vs return line top or bottom?
In a typical cooling system, the hot side is usually the top line, where heated fluid or air exits the system to be cooled. The return line, which brings the cooled fluid or air back into the system, is generally positioned at the bottom. This configuration allows for efficient heat exchange, as the hot fluid rises and the cooler fluid descends.
How do you measure for an HVAC unit?
The answer depends on what you want to measure: the area to be heated or cooled, the power of the heating or cooling kit. Since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
What evidence can you find from your graph that indicates neither cup heated nor cooled at a constant rate?
The evidence indicating that neither cup heated nor cooled at a constant rate can be observed from the graph's varying slope. If the temperature changes were consistent, the graph would show a straight line; instead, the presence of curves or varying steepness suggests fluctuating rates of heat transfer. Additionally, any abrupt changes in the slope indicate rapid heating or cooling at specific intervals, further confirming that the temperature changes were not uniform throughout the experiment.
Examples of conduction in everyday life?
Some examples of conduction in every day life are when a hot object is cooled in a freezer, when a person takes a warm bath and hot food cooling down on a stove top....hope that helps :)))
Does matter expand in heat or in the cold?
Matter typically expands when it is heated and contracts when it is cooled. This is due to the increased kinetic energy of the particles in the matter when heated, causing them to move further apart. Conversely, cooling matter decreases the kinetic energy, leading to the particles coming closer together.
Why does water expand on heating?
water expands on heating and contracts on cooling because when water is heated the molecules are closely packed and they overflow but when cooled they are loosely packed therefore they dont overflow. it is as simple as that.
When water at 4 degrees Celsius is cooled it does it contract?
Yes, water contracts when cooled from 4 degrees Celsius because it is in its densest state at that temperature. As it cools further, it expands until it reaches its freezing point, at which point it expands again and turns into ice.
Does water expand when cooled?
Yes, water expands when cooled below 4 degrees Celsius due to the formation of hydrogen bonds in its molecular structure. This expansion causes water to become less dense and eventually freeze into ice at 0 degrees Celsius.
Do any matter expand when cooled and contract when heated?
Sort of. In the temperature range of 0-4 Degrees Celsius water contracts when heated and expands when cooled. Outside of this temperature range it behaves normally.
Is the expansion of a substance due to heat?
YES, as far as I'm concerned, a substance expands when heated and contracts when cooled.
Why mercury is used in making thermometers?
It was used because it is a liquid that expands and contracts to a usable degree when heated or cooled.
Matter expands or contracts to fill the space available?
Matter generally expands when heated and contracts when cooled. This is due to the changes in the kinetic energy of the particles within the matter. The expansion or contraction allows matter to adjust its volume to the space available.
Which state of matter contracts more when cooled?
The solid state of matter usually contracts more when cooled compared to liquids and gases. This is because the molecules in a solid are already closely packed together, and cooling them further causes them to vibrate less, leading to a decrease in volume and contraction.
Does water contract or expand when it is cooled?
When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%
Which 3 solids contract on cooling?
Water contracts on cooling from 0°C to 4°C due to the formation of water molecules arranged in a hexagonal lattice structure. Ice contracts further upon cooling below 0°C as the molecules align into a more ordered arrangement. Most metals contract as they cool due to the decrease in thermal vibrations of the atoms in the crystal lattice.
What are the disadvantages of rubber?
When rubber is heated it expands, and when it is cooled is contracts- depending on what it is used for it could be an advantage.
