When we call something hot we mean that its temperature is high, and when we call something cold we mean that its temperature is low.
temperature decrease is cold temperature increase is hot
They both have something to do with thermal energy.
It is hot, higher temperature is hot and lower is cold. Cold temperature is from 0c to about 10c.
Hot Approach: It is difference in temperature of hot fluid inlet temperature and cold fluid outlet temperature Cold Approach: It is difference in temperature of Hot fluid outlet temperature and cold fluid inlet temperature. Mohsin
cold air has higher density, by hot air is opposite
Temperature is a physical property related with the sensation of cold or hot.99c im melting
Cold
A temperature is how hot and how cold it is.
Hot
cold
the temperature varies from hot to cold
It is the temperature.