Bomba kalorimetr ishlash jarayoni va xisobi

Bundan tashqari umumiy ichki energiya o'zgarishi
=-
V=0 (doimiy hajm) bu yerda bombaning issiqlik sig'imi
Bomba har qanday birikmaning yonish issiqligini aniqlash uchun ishlatilishidan oldin uni kalibrlash kerak. qiymatini quyidagicha baholash mumkin:

Laboratoriyada yonish qiymati ma'lum bo'lgan birikmani ishga tushirish orqali aniqlanadi:
Umumiy birikmalar benzoy kislotalardir ( {\displaystyle H_{\text{c}}=6318{\text{ cal/g}}} )
Harorat (T) har daqiqada qayd etiladi va {\displaystyle \Delta T=T_{\text{final}}-T_{\text{initial}}}
Yonishning umumiy issiqligini tuzatishga kichik omil yordam beradi sug'urta simi Nikel simi tez-tez ishlatiladi va yonish issiqligiga ega: 981,2 kal / g.
{\displaystyle \Delta H_{\text{c}}=C_{\text{v}}\Delta T\ \rightarrow C_{\text{v}}={\Delta H_{\text{c}} \over \Delta T}}
Bomba ichidagi namunaning (benzoy kislotasi) yonishi = {\displaystyle \Delta H_{c}=\Delta H_{\ce {c(benzoic\ acid)}}m_{\ce {benzoic\ acid}}+\Delta H_{\ce {c(Ni\ fuse\ wire)}}\Delta m_{\ce {Ni\ fuse\ wire}}}

Bombani kalibrlash uchun oz miqdorda (~ 1 g) benzoy kislotasi yoki p-metilbenzoy kislotasi tortiladi. Nikel simining uzunligi (~ 10 sm) yonish jarayonidan oldin ham, keyin ham tortiladi[4,5,6,7,8].

Foydalanilgan adabiyotlar ro‘yxati

1. Chisholm, Hugh, ed. (1911). "Black, Joseph". Encyclopædia Britannica. 4 (11th ed.). Cambridge University Press.
2. Antoine Laurent Lavoisier, Elements of Chemistry: In a New Systematic Order; Containing All the Modern Discoveries, 1789: "I acknowledge the name of Calorimeter, which I have given it, as derived partly from Greek and partly from Latin, is in some degree open to criticism; but in matters of science, a slight deviation from strict etymology, for the sake of giving distinctness of idea, is excusable; and I could not derive the name entirely from Greek without approaching too near to the names of known instruments employed for other purposes."
3. Buchholz, Andrea C; Schoeller, Dale A. (2004). "Is a Calorie a Calorie?". American Journal of Clinical Nutrition. 79 (5): 899S–906S. doi:10.1093/ajcn/79.5.899S. PMID 15113737. Retrieved 2007-03-12.
4.Polik, W. (1997). Bomb Calorimetery. Retrieved from http://www.chem.hope.edu/~polik/Chem345-2000/bombcalorimetry.htm Archived 2015-10-06 at the Wayback Machine
5.Bozzelli, J. (2010). Heat of Combustion via Calorimetry: Detailed Procedures. Chem 339-Physical Chemistry Lab for Chemical Engineers –Lab Manual.
6. Bech, N., Jensen, P. A., & Dam-Johansen, K. (2009). Determining the elemental composition of fuels by bomb calorimetry and the inverse correlation of HHV with elemental composition. Biomass & Bioenergy, 33(3), 534-537. 10.1016/j.biombioe.2008.08.015
7. "C80 Calorimeter from Setaram Instrumentation". Archived from the original on 2010-05-31. Retrieved 2010-07-12.
8. "Archived copy" (PDF). Archived from the original (PDF) on 2014-07-29. Retrieved 2014-07-25.