Marine Corps Physical Fitness Test. Fitness is essential to the day-to-day effectiveness and combat readiness of the Marine Corps. The Marine Corps considers physical fitness an indispensable aspect of leadership.
A: Chemical energy is for producing heat in the human body to sustain vital functions, converting solar energy in plants through photosynthesis, producing electrical energy in batteries to power devices and burning fossil fuels in combustion engines to produce heat or motion.
Chemical energy is a form of potential energy that can be stored in the bonds of chemical compounds. As soon as a chemical reaction takes place, the bonds among molecules break and release or absorb this energy, usually in the form of heat.If a reaction releases heat, it is exothermic. Wood, oil, coal and other forms of fossil fuels are burned inside combustion engines to convert chemical energy into heat or motion. 2  These fuels are also burned to produce electrical energy, light and mechanical energy depending on the device and the purpose of use.