Hi!
I'm still confused about what the internal energy is or the change in internal energy and how that's different from the specific heat capacity.
The meaning of delta U
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Re: The meaning of delta U
The internal energy of a system (U) is all the energy held in all of the atoms within the system. Delta-U describes the change in internal energy over a period of time. While heat capacity is related to internal energy, it describes a specific system's ability to absorb heat. When the same amount of heat is added, two different systems may respond in different ways; their final temperatures may not be the same. This is the result of a difference in heat capacities.
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Re: The meaning of delta U
The meaning of delta U is the change in internal energy of a system which is equal to the sum of the change in enthalpy plus pressure delta V.
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Re: The meaning of delta U
while delta u is the change (final - initial) of the internal energy, heat capacity refers to the amount of heat energy needed to raise the temperature by one unit
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Re: The meaning of delta U
Delta u is the change in internal energy, and heat capacity is the heat to raise the temperature by one degree
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