4 Tusaalooyin su'aalo ah oo ku saabsan kulaylka qarsoon, kulaylka isku-darka, kulaylka uumiga
1. Xaddiga kulaylka ee la nuugo si loo beddelo xaaladda 1 garaam oo dahab ah laga bilaabo adag ilaa dareere waa….. Kulaylka dhalaalka ee dahabka = 64,5 x 10 3 J/kg
Dood
Waa la ogyahay in:
Cufka dahabka (m) = 1 garaam = 1 x 10 -3 kg
Kulaylka isku-darka dahabka (L F ) = 64,5 x 10 3 J/kg
Su'aal: Kulaylka (Q) oo dahabku nuugo
Jawaab:
Q = m L F
Q = (1 x 10 -3 kg)(64,5 x 10 3 J/kg)
Q = 64,5 Joule
2. Xaddiga kulaylka ee ay tahay in lagu sii daayo 1 garaam oo meerkuri ah si loo beddelo xaaladdiisa dareeraha una beddelo mid adag waa….. Kulaylka isku-darka meerkurigu = 11,8 x 10 3 J/kg
Dood
Waa la ogyahay in:
Cufka meerkuriga (m) = 1 garaam = 1 x 10 -3 kg
Kulaylka isku-darka meerkuriga (L F ) = 11,8 x 10 3 J/kg
Su'aasha : Kulaylka (Q) oo ay sii dayso meerkuri
Jawaab:
Q = m L F
Q = (1 x 10 -3 kg)(11,8 x 10 3 J/kg)
Q = 11,8 Joule
3. Kulaylka la nuugo si uu u uumi baxo 1 kg oo biyo ah waa….. Kulaylka uumiga biyaha = 2256 x 10 3 J/kg
Dood
Waa la ogyahay in:
Cufka biyaha (m) = 1 kg
Kulaylka uumiga biyaha (L V ) = 2256 x 10 3 J/kg
Su'aashu waa: Kulaylka (Q) ee ay nuugaan biyuhu
Jawaab:
Q = m L V
Q = (1 kg)( 2256 x 10 3 J/kg)
Q = 2256 x 10 3 Joule
4. Kulaylka la sii daayo si loo shubo 1 garaam oo gaas nitrogen ah waa….. Kulaylka uumiga nitrogen = 200 x 10 3 J/kg
Dood
Waa la ogyahay in:
Cufka biyaha (m) = 1 garaam = 1 x 10 -3 kg
Kuleylka uumiga nitrojiin (L V ) = 200 x 10 3 J/kg
Su'aasha : Kulaylka (Q) oo ay sii daayaan gaaska nitrogen
Jawaab:
Q = m L V
Q = (1 x 10 -3 kg)( 200 x 10 3 J/kg)
Q = 200 Joule
