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What kind of energy of water increases as the water is heated by the coal?
Wiki User
∙ 12y ago
As water is heated in a coal-fired boiler, the enthalpyof the water increases. Note that enthalpy is defined as:
H = U + pV
whereH is the enthalpy of the systemU is the internal energy of the systemp is the pressure at the boundary of the system and its environmentV is the volume of the system.
Also note that as a state function, enthalpy is expressed as a value relative to some reference state. For water, this is typically liquid water at the triple point, although other conventions are used such as liquid water at the normal freezing point.
Wiki User
∙ 12y ago
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