A)Several years ago while participating in an early spring adventure race I had to cross a rapidly flowing stream that still had large chunks of ice floating in it.  The stream temperature was 0 °C. What mode of heat transfer do you think dominated? B)When solid food is place (example: a grilled cheese sandwich) onto a hot frying pan the food gets hot and cooks.  What do you think the dominant form of heat transfer? C)On a cold night friends love to huddle around the fireplace until we overheat .  What form of heat transfer do you think dominates in this situation?

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First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.