Heart diseases maybe: A symptom of tension/pressure inleft side of ribs/back is more likely a angina occure. Angina is chest pain or discomfort that occurs when the heart is working harder than usual. ...Read more.
The energy that is lost by the coffee and the mug is being transferred to the colder surroundings. We refer to this transfer of energy from the coffee and the mug to the surrounding air and countertop as heat. In this sense, heat is simply the transfer of energy from a hot object to a colder object.
Without the addition of energy (heat) to the process, ice would not sublimate into vapor. That is where sunlight plays a large role in the natural world. Water has a physical property called the heat of vaporization, which is the amount of heat required to vaporize water.