since there is kinetic energy in both hot and cold objects the particle in the hot objects move fast causing heat and the particles in the cold object move slower so the cold kinetic energy can cause the hot kinetic to become cooler
in other words
When you pour cold milk into hot cocoa the milk and cocoa particles start to collide. When a high-energy cocoa particle hits a low-energy milk particle, energy transfers. The cocoa particles slow down and the cup of cocoa cools down.
it makes it taste better and it is cold
I believe you are asking 'is hot cocoa better hot or cold'. If you make 'hot cocoa' with cold milk the cocoa will not dissolve and you will end up with lumpy not very well mixed chocolate milk.
Hot cocoa has a higher temperature than cold milk because it contains added ingredients such as cocoa powder, sugar, and possibly milk or cream that increase its overall temperature when heated. Heating causes the molecules in the cocoa mixture to move faster, resulting in a higher temperature compared to cold milk, which hasn't been heated.
Common chocolate drinks are chocolate milk and hot chocolate. Chocolate milk is a mixture of milk, cocoa powder and sugar, served cold. Hot chocolate is either hot chocolate milk or solid chocolate melted in milk.
When cocoa powder is stirred into hot water or milk, it changes from a dry powder to a liquid mixture. The cocoa powder dissolves in the hot liquid, resulting in a smooth and flavored drink.
Because the ice is cold. A more affective way of cooling hot cocoa is using milk because the ice waters the cocoa down.
Thick curd produces body heat after consuming. Butter Milk cools your body.
from heterogeneous to homogeneous
Powdered Cocoa is a powder made from cacao seeds after they have been fermented, roasted, shelled, ground, and freed of most of their fat. It is used mostly in baking and making fudge, but can be used to make hot chocolate. Cocoa Mix is this mixture of cocoa powder, dry milk and sugar. It is combined with cold or boiling water to make a cold or hot, chocolate-flavored beverage.
The cocoa powder has to blended with a cold liquid in order to prevent lumps. Then it must be added to hot milk or water, then boiled to ensure thorough cooking.
cocoa or baileys (or both)
Baking cocoa has no sweetner in it. It's extremely bitter. Chocolate cocoa is generally in a mix and already has sugar and the like. It's meant for drinking and not baking. Also Baking chocolate has more of the cocoa fat in it. Drinking cocoa has been processed to remove much of the fat.