Energy required to melt the ice or to vaporize the liquid water is 7378KJ
Heat energy to vaporize from 0°c to steam
mcΔT + nΔH = 2750g × 4.18 × 100°c + 153 mol × 40.7 kj/mol
More energy required to melt the ice or to vaporize the liquid water = 7378KJ
From one form to another, energy can be transformed. For instance, a person's body stores the chemical energy found in meals until he or she uses it as kinetic energy when engaging in physical activity. Electrical energy, which can then be transformed to light and heat, can be created from the chemical energy that is held in coal or natural gas as well as the kinetic energy of water flowing through rivers. Energy comes from a variety of different places and falls into two broad categories:
easy to replenish renewable energy sources
Easily replenish able nonrenewable energy sources
The production of usable energy, such as heat, can be done using both renewable and nonrenewable energy sources as primary sources of energy.
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