Qhov Tseem Ceeb Qhov txawv - Thermochemistry vs Thermodynamics
Thermodynamics yog ceg ntawm kev tshawb fawb lub cev uas cuam tshuam nrog kev sib raug zoo ntawm tshav kub thiab lwm yam ntawm lub zog xws li tshuab, hluav taws xob, lossis tshuaj lom neeg lub zog. Thermochemistry yog ib ceg ntawm thermodynamics. Thermochemistry kuj yog ib ceg ntawm chemistry uas piav qhia txog lub zog cua sov uas cuam tshuam rau cov tshuaj tiv thaiv. Qhov sib txawv tseem ceeb ntawm thermochemistry thiab thermodynamics yog tias thermochemistry yog qhov kev tshawb fawb ntau ntawm kev sib raug zoo ntawm cov tshuaj tiv thaiv tshav kub thiab tshuaj lom neeg thaum lub thermodynamics yog kev kawm txog kev cai lij choj cuam tshuam nrog kev sib raug zoo ntawm kev kub ntxhov thiab tshuaj lom neeg.
Thermochemistry yog dab tsi?
Thermochemistry yog kev kawm thiab ntsuas lub zog hluav taws xob cuam tshuam nrog cov tshuaj lom neeg. Cov tshuaj lom neeg muaj feem cuam tshuam nrog kev tso tawm thiab nqus cua sov. Qhov no yog vim cov tshuaj tiv thaiv kab mob cleavage thiab formations uas tshwm sim hauv cov tshuaj tiv thaiv. Txhawm rau rhuav tshem cov tshuaj lom neeg, lub zog yuav tsum tau nqus los ntawm sab nraud. Thaum ib daim ntawv cog lus tshuaj, lub zog tawm mus rau ib puag ncig. Raws li cov txheej txheem hloov cua sov no, muaj ob hom tshuaj tiv thaiv;
- Cov tshuaj tiv thaiv kev kub ntxhov - lub zog hluav taws xob tso tawm
- Endothermic cov tshuaj tiv thaiv - tshav kub lub zog yog absorbed.
Daim duab 01: Daim duab qhia qhov tshwm sim ntawm Exothermic
Hauv thermochemistry, lo lus "enthalpy" feem ntau siv. Nws yog ib qho thermodynamic kom muaj nuj nqis sib npaug rau tag nrho cov ntsiab lus cua sov ntawm ib qho system. Lub enthalpy (∆H) yog sib npaug rau lub zog sab hauv ntawm lub cev ntxiv rau cov khoom ntawm siab (P) thiab ntim (V).
∆H=U + PV
Siv cov enthalpies ntawm cov tshuaj sib txawv, qhov kub ntawm cov tshuaj tiv thaiv thiab ntau lwm yam tuaj yeem txiav txim siab. Qhov kub ntawm cov tshuaj tiv thaiv yog qhov hloov pauv hauv enthalpy. Qhov ntawd yog muab los ntawm qhov sib txawv ntawm enthalpy ntawm cov khoom thiab enthalpy ntawm reactants.
∆H=∆H (products) – ∆H(reactants)
Thermodynamics yog dab tsi?
Thermodynamics yog ceg ntawm kev tshawb fawb lub cev uas cuam tshuam nrog kev sib raug zoo ntawm tshav kub thiab lwm yam ntawm lub zog xws li tshuab, hluav taws xob, lossis tshuaj lom neeg lub zog. Nws piav qhia txog kev sib raug zoo ntawm txhua hom hluav taws xob. Lub tswv yim tseem ceeb ntawm thermodynamics yog kev sib koom ua ke ntawm cov cua sov nrog kev ua haujlwm los ntawm lossis ntawm ib qho system. Muaj ob peb nqe lus tseem ceeb hauv thermodynamics.
Daim duab 02: Ib Thermodynamic System
Enthalpy - tag nrho lub zog cov ntsiab lus ntawm lub tshuab ntsuas kub.
Entropy - ib qho kev qhia thermodynamic piav qhia txog qhov tsis muaj peev xwm ntawm lub tshuab hluav taws xob los hloov nws lub zog thermal rau hauv lub zog siv tshuab
Thermodynamic xeev - lub xeev ntawm lub kaw lus ntawm qhov ntsuas kub
Thermodynamic equilibrium - lub xeev ntawm lub tshuab ntsuas kub nyob hauv qhov sib npaug nrog ib lossis ntau dua lwm lub tshuab ntsuas kub
Ua haujlwm - tus nqi ntawm lub zog uas hloov mus rau ib puag ncig los ntawm qhov ntsuas kub.
Lub zog sab hauv - tag nrho lub zog ntawm lub tshuab hluav taws xob uas yog tshwm sim los ntawm kev txav ntawm cov molecules lossis atoms hauv qhov system.
Thermodynamics suav nrog cov cai lij choj.
- Zeroth Txoj Cai ntawm Thermodynamics - Thaum ob lub tshuab thev naus laus zis nyob rau hauv thermal sib npaug nrog peb lub tshuab thermodynamic, tag nrho peb lub tshuab yog nyob rau hauv thermal equilibrium nrog ib leeg.
- Thawj Txoj Cai ntawm Thermodynamics - Lub zog sab hauv ntawm lub cev yog qhov sib txawv ntawm lub zog nws nqus los ntawm ib puag ncig thiab kev ua haujlwm ua los ntawm lub kaw lus nyob ib puag ncig.
- Txoj Cai Thib Ob ntawm Thermodynamics - Thaum tshav kub tsis tuaj yeem ntws los ntawm qhov chaw txias dua mus rau qhov chaw kub dua nws tus kheej.
- Txoj Cai Thib Peb ntawm Thermodynamics - Raws li qhov system mus kom zero kiag li, tag nrho cov txheej txheem tso tseg thiab entropy ntawm lub kaw lus dhau los ua qhov tsawg kawg nkaus.
Kev sib raug zoo ntawm Thermochemistry thiab Thermodynamics yog dab tsi?
Thermochemistry yog ib ceg ntawm thermodynamics
Qhov txawv ntawm Thermochemistry thiab Thermodynamics yog dab tsi?
Thermochemistry vs Thermodynamics |
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| Thermochemistry yog txoj kev tshawb fawb thiab ntsuas lub zog hluav taws xob cuam tshuam nrog tshuaj lom neeg. | Thermodynamics yog ceg ntawm kev tshawb fawb lub cev uas cuam tshuam nrog kev sib raug zoo ntawm cov cua sov thiab lwm yam ntawm lub zog. |
| Theory | |
| Thermochemistry piav qhia txog kev sib raug zoo ntawm lub zog hluav taws xob thiab tshuaj lom neeg. | Thermodynamics piav qhia txog kev sib raug zoo ntawm txhua daim ntawv hluav taws xob nrog lub zog hluav taws xob. |
Summary – Thermochemistry vs Thermodynamics
Thermochemistry yog ib ceg ntawm thermodynamics. Qhov sib txawv tseem ceeb ntawm thermochemistry thiab thermodynamics yog tias thermochemistry yog qhov kev tshawb fawb ntau ntawm kev sib raug zoo ntawm cov tshuaj tiv thaiv tshav kub thiab tshuaj lom neeg thaum lub thermodynamics yog kev kawm txog kev cai lij choj cuam tshuam nrog kev sib raug zoo ntawm kev kub ntxhov thiab tshuaj lom neeg.
Download PDF Version of Thermochemistry vs Thermodynamics
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li cov ntawv sau tseg. Thov download PDF version ntawm no Qhov txawv Ntawm Thermochemistry thiab Thermodynamics
