Kupisa kwakanangana uye kugona kupisa - matambudziko nemhinduro

1. Muviri une huremu hwe2 kg unotora macalorie zana kana tembiricha yawo ikawedzera kubva pa20 ^o C kusvika 70 ^o C. Chii chinonzi kupisa kwemuviri?

Zvinozivikanwa:

Huremu (m) = 2 kg = 2000 gr

Kupisa (Q) = 100 c al

Kuchinja kwetembiricha ( ΔT ) = 70 ^o C – 20 ^o C = 50 ^o C

Zvinodiwa: Kupisa chaiko (c)

Solution:

c = Q / m Δ T

c = 100 cal / (2000 gr)(50 ^o C)

c = 100 cal / 100,000 gr ^o C

c = 10 ² cal / 10 ⁵ gr ^o C

c = (10 ² cal)( 10 ^-5 gr ^{-1 o} C ^-1 )

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

c = 10 ^-3 cal/ gr ^o C

Kupisa kwemuviri kwakakosha 10 ^-3 cal/gr ^o C

2. Kupisa kwemvura chaiyo i4180 J/kg Co2 ^. Kukwanisa kupisa kwe2 kg yemvura …

Zvinozivikanwa:

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

Huremu (m) = 2 kg

Zvinodiwa: Kukwanisa kupisa (C)

Solution:

C = mc

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

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

C = 8360 J/C ^o

3. Kupisa kwearuminiyamu chaiyo i900 J/kg C ^o . Kugona kupisa kwearuminiyamu ye2 gram…..

Zvinozivikanwa:

Kupisa kwearuminiyamu (c) = 900 J/kg C ^o = 9 x 10 ² J/kg C ^o

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

Zvinodiwa: Kukwanisa kupisa (C)

Solution:

C = mc

C = (2 x 10 ^-3 kg)( 9 x 10 ² J/kg C ^o )

C = 18 x 10 ^-3 x 10 ² 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