Origin of the name: "Latte" is a transliteration of the Italian word "Latte", which stands for "milk". Coffee latte is a fancy coffee, which is the perfect combination of coffee and milk. Italian latte is pure milk and coffee, while American latte uses milk foam to replace part of milk, which is mostly the case in local lattes.

The famous phrase "I'm not in the cafe, I'm on my way to the cafe" was said by a musician in Vienna. The air in Vienna always smells of music and latte.

Calculation formula:

Calculation formula of heat released by complete combustion of solid or liquid fuel: Q =mq Calculation formula of heat released by complete combustion of gas fuel: Q=Vq Q represents heat (j), Q represents calorific value (J/kg), M represents mass of solid fuel (kg), and V represents volume of gas fuel (m? )。

Q=Q amp/m (solid); Q=Q amp/volt (gas).

W=Q amplifier =qm W=Q amplifier =qV (W: total work).

SI international unit: Q-the heat released after a certain fuel is completely burned-Joule? j .

M-represents the mass of a certain fuel-kilogram? Kilogram.

Q-represents the calorific value of a fuel-joule per kilogram J/kg.

Refer to the above content: Baidu Encyclopedia-calorific value