∆U and ∆H
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Re: ∆U and ∆H
Delta U is the change in internal energy and Delta H is the change in Enthalpy. Enthalpy is only accounting for the heat entering or leaving a system while internal energy accounts for all types of energy. The two relate because the change in internal energy equals the change in enthalpy plus the work done on the system!
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Re: ∆U and ∆H
Delta U and delta H are interlocked cause the change in internal energy equals the change in enthalpy plus the work done on the system (this is one of the important equations in this unit).
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Re: ∆U and ∆H
delta u = delta H + work. You can use this relationship to calculate any of the three values in the equation.
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Re: ∆U and ∆H
Delta H is the change in enthalpy and it can be used to calculate the delta u (aka the change in internal energy of the system). The equation is delta u = delta h - (temperature)(delta S or entropy).
Re: ∆U and ∆H
Delta H indicates the change in enthalpy while Delta U indicates change in internal energy of the system. Delta U = Delta H + work
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Re: ∆U and ∆H
Delta U denotes a change in internal energy while delta H is used for a change in enthalpy. At constant pressure, delta H = q (heat). Since delta U = q + w (heat + work), at constant pressure, delta U = delta H + w too.
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