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if something cold were to sit in room temperature it would get warmer than the room, slightly because it has more spread particles, if a hot object were to sit at room temperature it would get cooler than the room because it has more particles clustered together
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∙ 14y ago
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Since a hot cup of coffee loses heat more rapidly than a lukewarm cup of coffee would it is correct to say that a hot cup of coffee will cool to room temperature before a lukewarm cup of coffee will?
A hot cup of coffee will cool down at a certain rate, but as the coffee cools, the rate at which it cools slows down. This is why a "lukewarm" cup of coffee cools down so slowly. Even though the warm cup of coffee is cooling down quicker at first, the lukewarm cup essentially has a "head start" on the way to room temperature.
What is the best way to cool the roast meat?
leave it to cool in a cool room to about room temperature and then refridgerate.
Could coffee melt ice?
If the coffee is hot, it'll melt the ice quickly. If it's room temperature, the ice will still melt. Ice will melt in any situation where its surroundings are at a warmer temperature than itself.
What is below room temperature?
It's the temperature of your room -1 degree. The average room temperature is 68 degrees Fahrenheit.
Are turtles cool?
Yes they are, or at least room temperature.
What degree is cool room temperature in?
20 C
How does a cover on a coffee cup prevent heat escaping?
Covering up a coffee cup lowers the rate at which energy can escape from the cup. It does this through a combination of a few things, the most important is lowering the amount of heat removed through convection. Convection is the mode of heat transfer involved with flowing gases and fluids. The amount of heat it can remove (i.e. how fast it cools the coffee) is very much dependent on the temperature difference between the flowing gases and in our case, the coffee. The higher the temperature difference, the faster they would cool (makes sense, right). When you put a lid on the coffee, you have trapped the heated air inside the coffee mug. As a result, the temperature of the air rises until the temperature of the air and the temperature of the coffee are practically the same. Using our above reasoning, we know that the coffee cannot cool down from the air anymore since they are both at the same temperature. However, if you leave the mug uncovered, you allow fresh, cool room temperature air back into the mug. This means that the temperature difference between the flowing air and the coffee causes the coffee to cool down. Another reason hot coffee will cool down is because the heat of vaporization of the liquid coffee. The heat of vaporization is the amount of energy required to make a liquid phase change to a gas. This removes energy from the coffee, making it cooler. When you leave the coffee uncovered, the coffee vapor is allowed to escape to the environment. Liquids will continually evaporate gases until it reaches a equilibrium point (noted by the substances "vapor pressure"). It would take alot of coffee to fill up a whole room with coffee gases, so that it would stop evaporating. However, putting a lid on the coffee traps the evaporation and the coffee will stop evaporating MUCH sooner (remember, less evaporation means stays hotter longer). Hope this helps.
Hot oil room temperature oil room temperature water below room temperature oil Which is likely to have the lowest viscosity?
hot oil.
What is cool room temperature in degrees celsius?
20 C
What happens when sodium chloride prepared at 608 degree is allowed to cool at room temperature?
At room temperature sodium chloride is a solid.
How can starting at a temperature below room temperature results in a final equilibrium temperature that is slightly warmer than room temperature?
Add a little heat.
Thermodynamic data can be obtained from a coffee cup?
ANSWER: Most people say that you leave the coffee so it's hotter when you get back then pour the milk in. This is incorrect... a simple Thermodynamic principle is that the further away something is from the ambient temperature the faster it will approach it - it's exponential. So If you ad the milk first the coffee will be closer to the room temperature and cool down slower than if you left it and poured the milk in after. Of course there are variables like the temperature of the room and the milk - the density and insulation of the cup itself but the basic principle stands.
