Kuchengetedza simba rekufambisa kupisa - matambudziko nemhinduro

1. 1 kg yemvura pa 100^oC yakasanganiswa ne 1 kg yemvura pa 10^oC muhurongwa hwakasiyana. kupisa chaiko yemvura 4200 J/kg ^oC. Sarudza yekupedzisira tembiricha yemusanganiswa!

Zvinozivikanwa:

Misa yemvura inopisa (m₁) = 1 kg

Kupisa kwemvura inopisa (T₁= = 100^oC

Mvura inotonhora yakawanda (m₂) = 1 kg

Kupisa kwemvura inotonhora (T₂= = 10^oC

Zvaidiwa: Tembiricha yekupedzisira (T)

Solution:

Kurasikirwa nekupisa = Kupisa kwawanikwa (system yakaparadzaniswa)

m c ΔT = m c ΔT

m ΔT = m ΔT

m₁ (T₁ – T) = m₂ (T - T₂)

(1)(100 – T) = (1)(T – 10)

100 - T = T – 10

100 + 10 = T + T

110 = 2T

T = 110 / 2

T = 55

Tembiricha yekupedzisira ndeye 55^oC.

2. Bhokisi remutobvu re3 kg pa80^o yakaiswa mu10 kg yemvura. Kupisa kwemutobvu chaiwo i1400 J.kg^-1C^-1 uye kupisa kwemvura chaiyo i4200 J.kg^-1C^-1Tembiricha yekupedzisira mukuenzanisa kwekupisa ndeye 20^oC. Sarudza tembiricha yekutanga yemvura!

Zvinozivikanwa:

Misa (m₁) = 3 kg

Kupisa kwakananga kwemutobvu (c₁) = 1400 J.kg^-1C^-1

Kupisa kwemutobvu (T₁= = 80 ^oC

Mvura yakawanda (m₂) = 10 kg

Kupisa kwemvura chaiyo (c₂) = 4200 J.kg^-1C^-1

Kupisa kwekuenzana kwekupisa (T) = 20 ^oC

Zvaidiwa: Tembiricha yekutanga yemvura (T₂)

Solution:

Kupisa kwakarasika = Kupisa kwawanikwa

Q tungamira =Q mvura

m₁ c₁ ΔT = m₂ c₂ ΔT

(3)(1400)(80-20) = (10)(4200)(20-T)

(4200)(60) = (42,000)(20-T)

252,000 = 840,000 – 42,000 T

42,000 T = 840,000 – 252,000

42,000 T = 588,000

T = 588,000 / 42,000

T = 14

Tembiricha yekutanga yemvura ndeye 14^oC.

3. Bhokisi remhangura pa 100^oC yakaiswa mu 128 gramu yemvura pa 30 ^oC. Kupisa kwemvura chaiyo ndiko 1 cal.g^-1oC^-1 uye kupisa kwemhangura chaiyo ndiko 0.1 cal.g^-1oC^-1. Kana tembiricha ye thermal equilibrium iri 36 ^oC, sarudza huremu hwemhangura!

Zvinozivikanwa:

Kupisa kwemhangura (T₁= = 100 ^oC

Kupisa chaiko kwemhangura (c₁= = 0.1 cal.g^-1oC^-1

Mvura yakawanda (m₂) = magiramu 128

Tembiricha yemvura (T₂= = 30 ^oC

Kupisa kwemvura chaiyo (c₂= = 1 cal.g^-1oC^-1

Kupisa kwekuenzana kwekupisa (T) = 36 ^oC

Zvaidiwa: Huremu hwemhangura (m₁)

Solution:

Kupisa kwakarasika = Kupisa kwawanikwa

Q Mhangura =Q mvura

m₁ c₁ ΔT = m₂ c₂ ΔT

(m₁)(0.1)(100-36) = (128)(1)(36-30)

(m₁)(0.1)(64) = (128)(1)(6)

(m₁)(6.4) = 768

m₁ = 768/6.4

m₁ = 120

Huremu hwemhangura ndi 120 magiramu.

4. Chivharo chechando cheM-kg pa 0^oC yakaiswa mu 340 gramu yemvura pa 20^oC muhari. Kana kupisa kwekubatana yemvura = 80 cal g^-1, kupisa kwemvura chaiyo ndiko 1 cal g^{-1 o}C^-1. Aizi yese inonyunguduka uye tembiricha ye kuenzana kwekupisa is 5^oC, sarudza huwandu hwechando!

Zvinozivikanwa:

Mvura yakawanda (m) = magiramu 340

Kupisa kwechando (T _ice= = 0^oC

Kupisa kwemvura (T _mvura= = 20^oC

Kupisa kwekuenzana kwekupisa (T) = 5^oC

Kupisa kwekubatana kwemvura (L= = 80 cal g^-1

Kupisa kwemvura chaiyo (c _mvura= = 1 cal g^{-1 o}C^-1

Zvaidiwa: Misa yechando (M)

Solution:

Kupisa kwakarasika = Kupisa kwawanikwa

Mvura yeQ = chando cheQ

m c (ΔT) = m_es L_es +m c (ΔT)

(340)(1)(20-5) = M (80) + M (1)(5-0)

(340)(15) = 80M + 5M

5100 = 85M

M = 5100/85

M = magiramu makumi matanhatu

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1. Kuchinja zviyero zvekupisa
2. Linear kuwedzera
3. Kuwedzera kwenzvimbo
4. Kuwedzera inzwi
5. Heat
6. Kuenzana kwekupisa kwemuchina
7. Kupisa kwakananga uye kugona kupisa
8. Kupisa kwakahwanda, kupisa kwekusanganiswa, kupisa kwekupfuta
9. Kuchengetedza simba rekutamisa kupisa