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ANISH95
Group Title
why heat capacity integrals required for accurate enthalpy measurements??????
 one year ago
 one year ago
ANISH95 Group Title
why heat capacity integrals required for accurate enthalpy measurements??????
 one year ago
 one year ago

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BluFoot Group TitleBest ResponseYou've already chosen the best response.0
No clue what you're talking about.
 one year ago

Carl_Pham Group TitleBest ResponseYou've already chosen the best response.0
How are you going to calculate heat from changes in temperature? Surely something like this:\[Q = \int d{\rm T} \thinspace m \thinspace C_p({\rm T})\]
 one year ago

ANISH95 Group TitleBest ResponseYou've already chosen the best response.0
i am talking about enthalpy measurement using the relation\[dH=Cp*dT\] and then integrating it over the range of temperature, well acually enthalpy is supposed to be a function of temp. and pressure. at constant pressure if i want to calculate the enthalpy at constant pressure ............. well never mind..!! this was a question in physical chemistry by castellan. i was not able to figure out what might be the answer but now i know the ans.. so u may forget this question.!! the ans is ridiculously simple.. the heat capacity at constant pressure of a substance is not independent of temp. but is a function of temp. so we dont take it as a constant quantity and thus for ACCURATE measurements we use heat capacity integrals.(not from the formula u mentioned carl) but from this formula\[Cp=a+bT+cT^2+dT^3+.......\] i hope its a bit clear now// apologies for writing such a long answer!!
 one year ago

JeanetteBaker Group TitleBest ResponseYou've already chosen the best response.0
did you get the help you needed?
 one year ago
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