Ike okpomọkụ na okpomọkụ kpọmkwem - nsogbu na ngwọta

1. Ahụ́ nke dị kilogram abụọ na-amịkọrọ okpomọkụ 100 kalori mgbe okpomọkụ ya na - arị elu site na 20 ^o C ruo 70 ^o C. Gịnị bụ okpomọkụ kpọmkwem nke ahụ?

A maara:

Ibu (m) = 2 kg = 2000 gr

Okpomọkụ (Q) = 100 c al

Mgbanwe na okpomọkụ ( ΔT ) = 70 ^o C – 20 ^o C = 50 ^o C

Achọrọ: Okpomọkụ kpọmkwem (c)

Ngwọta:

c = Q / m Δ T

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

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

c = 10 ² kalori / 10 ⁵ g ^o C

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

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

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

Okpomọkụ kpọmkwem nke ahụ bụ 10-3 ^kalori / gr ^oC

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2. Okpomọkụ mmiri kpọmkwem bụ 4180 J/kg C ^o . Oke ike okpomọkụ nke mmiri kilogram 2 …

A maara:

Okpomọkụ kpọmkwem (c) = 4180 J/kg C ^o

Ibu (m) = 2 kg

Achọtara: Ike okpomọkụ (C)

Ngwọta:

C = mc

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

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

C = 8360 J/C ^o

3. Okpomọkụ kpọmkwem nke aluminom bụ 900 J/kg C ^o . Oke ike okpomọkụ nke aluminom gram 2…..

A maara:

Okpomọkụ kpọmkwem nke aluminom (c) = 900 J/kg C ^o = 9 x 10 ² J/kg C ^o

Ibu (m) = gram 2 = 2/1000 kg = 2/10 ³ kg = 2 x 10 ^-3 kg

Achọtara: Ike okpomọkụ (C)

Ngwọta:

C = mc

C = (2 x 10 ^-3 n'arọ) ( 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. Ịgbanwe nha okpomọkụ
2. Mgbasawanye ahịrị
3. Mgbasawanye mpaghara
4. Mgbasawanye olu
5. okpomọkụ
6. Ihe nhata igwe nke okpomọkụ
7. Ike okpomọkụ na okpomọkụ kpọmkwem
8. Okpomọkụ zoro ezo, okpomọkụ nke njikọta, okpomọkụ nke vaporization
9. Nchekwa ike maka nnyefe okpomọkụ