Misalai 4 na tambayoyi game da zafi mai ɓoye, zafin haɗuwa, zafin tururi
1. Adadin zafin da dole ne a sha don canza yanayin gram 1 na zinariya daga daskararre zuwa ruwa shine….. Zafin narkewar zinariya = 64,5 x 10 3 J/kg
Tattaunawa
An san cewa:
Nauyin zinare (m) = gram 1 = 1 x 10 -3 kg
Zafin haɗakar zinare (L F ) = 64,5 x 10 3 J/kg
Tambaya: Zafi (Q) da zinare ke sha
Amsa:
Q = m L F
Q = (1 x 10 -3 kg)(64,5 x 10 3 J/kg)
Q = Joules 64,5
2. Adadin zafin da dole ne a fitar da shi da gram 1 na mercury don canza yanayinsa daga ruwa zuwa daskararre shine….. Zafin haɗakar mercury = 11,8 x 10 3 J/kg
Tattaunawa
An san cewa:
Nauyin Mercury (m) = gram 1 = 1 x 10 -3 kg
Zafin haɗakar mercury (LF ) = 11,8 x 10 3 J/kg
A cikin tambayar: Zafi (Q) da Mercury ke fitarwa
Amsa:
Q = m L F
Q = (1 x 10 -3 kg)(11,8 x 10 3 J/kg)
Q = Joules 11,8
3. Zafin da ake sha don ƙafe kilogiram 1 na ruwa shine….. Zafin tururin ruwa = 2256 x 10 3 J/kg
Tattaunawa
An san cewa:
Nauyin ruwa (m) = 1 kg
Zafin tururin ruwa (L V ) = 2256 x 10 3 J/kg
Tambayar ita ce: Zafi (Q) da ruwa ke sha
Amsa:
Q = m L V
Q = (1 kg)( 2256 x 10 3 J/kg)
Q = 2256 x 10 Joule 3
4. Zafin da aka saki don shan iskar nitrogen gram 1 shine….. Zafin tururin nitrogen = 200 x 10 3 J/kg
Tattaunawa
An san cewa:
Nauyin ruwa (m) = gram 1 = 1 x 10 -3 kg
Zafin tururin nitrogen (L V ) = 200 x 10 3 J/kg
A cikin tambayar: Zafi (Q) da iskar nitrogen ke fitarwa
Amsa:
Q = m L V
Q = (1 x 10 -3 kg)( 200 x 10 3 J/kg)
Q = Joules 200
