Because the rate of evaporation depends upon the surface area exposed to the atmosphere. The surface area of a saucer is greater than that of a cup which makes it easier for tea to evaporate rapidly which thereby makes the tea cool.
The (rather disgusting, uncouth and common) idea of transferring tea to a saucer before drinking it (noisily), is to cool it down faster, because of the larger surface area provided. The relatively thin layer of tea, also aids conduction through the saucer, cooling it even faster. It's a matter of temperature, more than viscosity or speed.
Milk freezes faster than vinegar because milk is mostly water, which freezes at a higher temperature compared to vinegar. The water content in milk allows it to freeze more quickly than the acidic vinegar.
Sugar dissolves faster in hot milk because the heat increases the kinetic energy of the sugar molecules, causing them to move faster and come into contact with the milk molecules more frequently, leading to a faster dissolution process. The higher temperature also reduces the solubility of sugar, helping it mix and dissolve more easily in the liquid.
In a nut shell, because heat transfers faster from hotter to colder, like how a car will roll down a steep hill faster that it will roll down a hill that is less steep.
When milk sours, it undergoes a chemical change rather than a physical change. The bacteria in the milk ferment the lactose sugar into lactic acid, changing the chemical composition of the milk. This process cannot be reversed by physical means, distinguishing it as a chemical change.
this is because the surface area is larger because of which evaporation takes place faster and the milk is cooled faster
Sipping hot tea or milk from a saucer allows for a larger surface area, which helps the liquid cool faster. The wider space also allows for more controlled sips, preventing spills. Additionally, the lower height of the saucer compared to a cup makes it easier for the liquid to reach your mouth quickly.
The (rather disgusting, uncouth and common) idea of transferring tea to a saucer before drinking it (noisily), is to cool it down faster, because of the larger surface area provided. The relatively thin layer of tea, also aids conduction through the saucer, cooling it even faster. It's a matter of temperature, more than viscosity or speed.
Cooling due to simple evaporation at a surface is clearly simpler when the surface is large, such as the saucer. The cooling is due to the molecules that have more energy breaking free of the surface. Hence the average temperature of the remainder lowers.
You should place a saucer under the cup to catch any spills. The term 'flying saucer' comes from the plate-like appearance of some UFOs. The cat is happy to get a saucer of milk in the morning. Seldom, people claim to see a flying saucer.
cow milk rots faster
Chocolate milk will rot faster then white milk
No milk freeze faster
dark choclate melts faster in milk.
"Me and My Girl." Bill Snibson referring to Sally Smith.
Does water, coke or milk grow faster?
the powder milk.