Qattiq jismlarning solishtirma issiqlik sig’imini aniqlash
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labaratoriya 2
2∙
𝑚 2 (t M ,-t 2 ) / 𝑚 1 ( t 1 −𝜗 m ) Kalorimetrning idishi ham pitradan ajralgan issiqlikning bir qismini yutadi. Demak, kalorimetrning issiqlik sig’imi quyidagiga teng bo’ladi C K =C 2 ⋅ m K (V) Shunday qilib, kalorimetr idishining suv ekvivalenti mK hisoblashlarda hisobga olinadi. (III) formula bilan hisoblangan yutilgan issiqlikning miqdori ancha aniqroq hisoblanadi ΔQ 2 =c 2 ⋅ (m 2 +m K ) ⋅ ( t m -t 2 ) (VI), va uni hisobga olgan holdagi (IV) formula quyidagi ko’rinishga keladi: 𝑐 1 = 𝑐 2∙ ( 𝑚 2 +m k )(t M ,-t 2 ) / 𝑚 1 ( t 1 −𝜗 m ) Kerakli asboblar va ashyolar 1 Dyuar idishi .............................................. 386 48 1 Dyuar idishi g’ilofi ..................................... 384 161 1 mis pitra, 200 g ........................................ 384 35 1 shisha pitra, 100 g ................................... 348 36 1 qo’rg’oshin pitra, 200 g ............................ 315 76 1 o’quv laboratoriya torozisi 610 Tare, 610 g . 315 23 1 termometr -10 °C dan +110 °C gacha ..... 382 34 1 NiCr-Ni temperatura datchigi…………….. 666 193 1 raqamli termometr .................................... 666 190 1 Bug’ generatori, 550 Vt / 220 V ................ 303 281 1 Qizdirish apparati .................................... 384 34 1 menzurka, 400 ml ................................... 664 104 1 V-shaklsimon shtativ asosi, 20 sm ......... 300 02 1 shtativ ustuni 47 sm ................................. 300 42 1 multi tutgichlar Leybold ........................... 301 01 1 Universal tutgich, diametri 0...80 mm ..... 666 555 1 Silikon quvurlar, ichki diam. 7×1.5 mm, 1 m....... 667 194 1 bir juft issiqlikka chidamli qo’lqop ………..667 614 Download 439.84 Kb. Do'stlaringiz bilan baham: |
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