Consider the gallon of water from the scenario in the previous question. If we use a 600 square centimeter magnifying glass to focus the sun's light on the water, how long will it take to raise the water to boiling? Ignore any heat lost by the water during the process. Some useful values: 4. The radiant power of the sun at noon on the Earth's equator is about 1,370 watts per square meter. That is 1,370 joules of energy every second over every square meter of the Earth near the equator.
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
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