Kupisa kwakanangana uye kugona kupisa - matambudziko nemhinduro

1. Muviri une uremu 2 makirogiramu inonwisa kupisa 100 macalorie kana zvasvika tembiricha mari inotorwa kubva 20^oC kuti 70^oC. Chii kupisa chaiko yemuviri?

Zvinozivikanwa:

Huremu (m) = 2 kg = 2000 gr

Heat (Q) = 100 cal

Kuchinja kwekupisa (ΔT) = 70^oC - 20^oC = zana^oC

Zvaidiwa: Kupisa chaiko (C)

Solution:

c = Q / m ΔT

c = 100 cal / (2000 gr)(50^oC)

c = 100 cal / 100,000 gr ^oC

c = 10² macalorie / 10⁵ gr ^oC

c = (10)² (cal)(10^-5 gr^{-1 o}C^-1)

c = 10^-3 vanoda gr^{-1 o}C^-1

c = 10^-3 cal/gr ^oC

Kupisa kwemuviri chaiko ndiko 10^-3 makarori/gr ^oC

2. Kupisa kwemvura chaiyo ndiko 4180 J/kg C^o. Kukwanisa kupisa kwemvura ye2 kg kwakawanda sei…

Zvinozivikanwa:

Kupisa chaiko (c) = 4180 J/kg C^o

Misa (m) = 2 kg

Zvaidiwa: Simba rekupisa (C)

Solution:

C = mc

C = (2 kg)(4180 J/kg C^o)

C = (2)(4180 J/C^o)

C = 8360 J/C^o

3. Kupisa kwearuminiyamu ndiko 900 J/kg C^o. Kukwanisa kupisa kwakawanda sei 2 magiramu ealuminium…..

Zvinozivikanwa:

Kupisa kwakananga kwearuminiyamu (c) = 900 J/kg C^o = 9 x gumi² J/kg C^o

Huremu (m) = magiramu maviri = 2/1000 kg = 2/10³ makirogiramu = 2 x 10^-3 kg

Zvaidiwa: Simba rekupisa (C)

Solution:

C = mc

C = (2 x 10)^-3 kg)(9 X 10² J/kg C^o)

C = 18 x 10^-3 x 10² J/C^o

C = 18 x 10^-1 J/C^o

C= 1.8 J/C^o

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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