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well the hypothesis tells us that black coffee is naturally hotter than white coffee but the actual answer to this question is that white coffee cools faster because milk has its own temperature and will definitely make a difference.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoBlack coffee cools faster because, being a dark colour, it emits more heat than lighter things like white coffee, hence it cools faster.:)
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Does black coffee cool quicker than white?
yes it does because black emits heat better but as well as white coffe has its own milks temperature
If you wanted to slow evaporation from a pot of coffee?
cool it down
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 quickest way to break down alcohol levels in your blood?
There isn't a "quick way" to break down alcohol levels in your body. Showering, coffee, water, etc.. all a myth.
What would happen to the particles in a mug of coffee it you let them cool down?
The particles may settle down at the bottom of the mug...
Which kettle would cool down faster a black shiny kettle or a shiny metallic kettle?
shiny because its cool when after boiled also the black wouldnt cool as it attracts heat.
Does coffee extract affect kids height?
Black coffee and any coffee actually stops or can slow down growth. A major amount of caffeine can also slow growth.
What is the quickest way to cool a drink?
To cool cans and bottles down quickly, take a wet paper towel and wrap it around the outside of the container. Then put it in the freezer for approximately 15 minutes and come back to enjoy your chilled can or bottle.
How does gibbs take his coffee?
Black!!!! In the initial episode in JAG called "Ice Queen" Gibbs is interogating Harm and he calls down and orders 2 coffees- Black. Also in the Episode "Forced Entry" it is mentioned that Marines only drink black coffee. In the episode "My other Left Foot" the suspect is making coffee for Gibbs and it is black. She asked how it is and he said "Perfect"
When the sun goes down at night which do you think would cool faster a black road surface or surface of a lake?
The road would cool fastest.
How can you best use a spoon to cool a cup of coffee?
First, definitely refridgerate or freeze the spoon prior to using. The lower the initial temperature of the spoon the more heat it may absorb from the coffee. Second, use the spoon to stir the coffee from the bottom of the cup to the surface. Since the air above the coffee is lower in temperature, heat will dissipate from the coffee into the air above. By stirring the contents on the bottom to the top it sends the cooler surface layer of coffe down and brings hotter coffee to the surface to dissipate heat. This process repeated will in time cool the coffee.
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.
