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Video: Yuav ua li cas koj daws qhov zoo tagnrho gas txoj cai?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2024-01-18 08:15
Ideal Gas Law Formula
- Ideal Gas Law Cov lus nug Formula:
- Teb: Qhov Volume yog V = 890.0mL thiab qhov kub yog T = 21 ° C thiab qhov siab yog P = 750mmHg.
- PV = nRT.
- Teb: Tus naj npawb ntawm moles yog n = 3.00moles, kub yog T = 24 ° C thiab siab yog P = 762.4 mmHg.
- PV = nRT.
Ib sab ntawm qhov no, koj yuav ua li cas xam cov roj av zoo?
Cov khoom ntawm cov roj zoo tagnrho yog tag nrho cov kab hauv ib qho qauv ntawm daim ntawv pV = nRT, qhov twg:
- p yog qhov siab ntawm cov pa, ntsuas hauv Pa,
- V yog qhov ntim ntawm cov pa, ntsuas hauv m^3,
- n yog tus nqi ntawm cov khoom, ntsuas hauv moles,
- R yog qhov zoo tagnrho cov pa tsis tu ncua thiab.
- T yog qhov kub ntawm cov pa, ntsuas hauv Kelvins.
Ib yam li ntawd, vim li cas txoj cai roj zoo tagnrho tseem ceeb? Boyle cov Txoj cai hais tias, thaum qhov kub thiab txias tas li, lub siab thiab ntim ntawm cov qauv ruaj khov ntawm a gas yog inversely proportional (P1 x V1 = P2 x V2). Yog li qhov tseem ceeb yog qhov txoj cai gas zoo tagnrho xam tus cwj pwm ntawm ib qho gas nyob rau hauv tej yam kev mob ntawm kub thiab siab.
Tsis tas li cov lus nug yog, koj ua li cas thiaj nrhiav tau siab siv txoj cai roj zoo?
Ua ntej, cia peb saib cov txoj cai gas zoo tagnrho , PV = nRT. Hauv qhov sib npaug no, 'P' yog tus siab Hauv cov huab cua, 'V' yog qhov ntim hauv litres, 'n' yog tus lej ntawm cov khoom hauv moles, 'T' yog qhov kub thiab txias hauv Kelvin thiab 'R' yog qhov zoo tagnrho gas tas li (0.0821 litre cua hauv ib moles Kelvin).
Dab tsi yog cov units rau kev cai lij choj zoo tagnrho?
Hauv SI units, p yog ntsuas hauv pascals , V yog ntsuas hauv cubic meter, n yog ntsuas hauv moles, thiab T hauv kev (cov Kelvin scale yog hloov Celsius scale, qhov twg 0.00 K = -273.15 ° C, qhov qis tshaj qhov ua tau kub). R muaj tus nqi 8.314 J/(K. mol) ≈ 2 cal/(K.
Pom zoo:
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