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LKS faktor-faktor yang mempaengaruhikalorsuatuzat

NAMA       :

NO         :

KELAS :

Tujuan
Menyelidikifaktor-faktor                yang                 mempengaruhikalorpadasuatuzat

Alatdanbahan

        Gelasbeker
        Kasadan kaki tiga
        Pembakarspritusdankorekapi
        Termometer
        Air

Langkahkerja
BagianSatu




   1.   Siapkanlahduabuahgelasbekerdanisilahdengan air masing-masing 100 ml dan 50 ml.
   2.   Catatsuhu air mula-muladanusahakansuhunyasama.
   3.   Panaskan 50 ml air dan 100 ml air tersebutdengannyalaapi yang samasampaisuhu 50 °C.
   4.   Catatlahwaktu yang diperlukanuntukmemanaskankeduanyakedalamtabel.
BagianDua




   1. Sediakanduagelasbekerdanisilahmasing-masingdengan 100 ml air dan 100 ml
      minyakgoreng.
   2. Catatsuhumula-mulakeduazatcairitu.
   3. Panaskan 100 ml air dan 100 ml minyakgorengtersebutsecarabersamaandengannyalaapi
      yang sama.
   4. Catatwaktu yang diperlukanolehkeduazatdengankenaikansuhu yang sama, misalnya
      25°C.
   5. Masukkanhasilnyadalamtabelpengamatan.




BagianTiga




   1.   Sediakangelasbekerdanisilahdengan 100 ml air.
   2.   Panaskan air tersebutdalamnyalaapi.
   3.   Catatsuhumula-muladankenaikkansuhunyasetiap 1 menitselama 5 menit.
   4.   Masukkanhasilnyadalamtabelpengamatan.
Pertanyaan

   1. Seandainyabanyaknyakalor           yang       diberikanuntukmemanaskan        air
      sebandingdenganwaktupemanasan, makinbesarkalor yang diperlukanuntukmemanaskan
      100 ml air lebih lama dibandingkandenganmemanaskan 50 ml air padasuhu yang sama.
      Volume air sebandingdenganmassa air, semakinbesarvolumenyasemakinbesar pula
      massanya.                  Adakahhubunganantarabanyaknyakalor               yang
      diperlukanuntukmenaikkansuhubendadenganmassabenda?
   2. Dari                hasilkegiatandua,             samakahwaktu              yang
      diperlukanuntukmemanaskanduajeniszatberbedadengan           volume        sama?
      Apakahjenisbendajugamempengaruhibanyaknyakalor yang diperlukan?
   3. Apa yang dapatkamusimpulkan?

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Lks faktor kalor

  • 1. LKS faktor-faktor yang mempaengaruhikalorsuatuzat NAMA : NO : KELAS : Tujuan Menyelidikifaktor-faktor yang mempengaruhikalorpadasuatuzat Alatdanbahan Gelasbeker Kasadan kaki tiga Pembakarspritusdankorekapi Termometer Air Langkahkerja BagianSatu 1. Siapkanlahduabuahgelasbekerdanisilahdengan air masing-masing 100 ml dan 50 ml. 2. Catatsuhu air mula-muladanusahakansuhunyasama. 3. Panaskan 50 ml air dan 100 ml air tersebutdengannyalaapi yang samasampaisuhu 50 °C. 4. Catatlahwaktu yang diperlukanuntukmemanaskankeduanyakedalamtabel.
  • 2. BagianDua 1. Sediakanduagelasbekerdanisilahmasing-masingdengan 100 ml air dan 100 ml minyakgoreng. 2. Catatsuhumula-mulakeduazatcairitu. 3. Panaskan 100 ml air dan 100 ml minyakgorengtersebutsecarabersamaandengannyalaapi yang sama. 4. Catatwaktu yang diperlukanolehkeduazatdengankenaikansuhu yang sama, misalnya 25°C. 5. Masukkanhasilnyadalamtabelpengamatan. BagianTiga 1. Sediakangelasbekerdanisilahdengan 100 ml air. 2. Panaskan air tersebutdalamnyalaapi. 3. Catatsuhumula-muladankenaikkansuhunyasetiap 1 menitselama 5 menit. 4. Masukkanhasilnyadalamtabelpengamatan.
  • 3. Pertanyaan 1. Seandainyabanyaknyakalor yang diberikanuntukmemanaskan air sebandingdenganwaktupemanasan, makinbesarkalor yang diperlukanuntukmemanaskan 100 ml air lebih lama dibandingkandenganmemanaskan 50 ml air padasuhu yang sama. Volume air sebandingdenganmassa air, semakinbesarvolumenyasemakinbesar pula massanya. Adakahhubunganantarabanyaknyakalor yang diperlukanuntukmenaikkansuhubendadenganmassabenda? 2. Dari hasilkegiatandua, samakahwaktu yang diperlukanuntukmemanaskanduajeniszatberbedadengan volume sama? Apakahjenisbendajugamempengaruhibanyaknyakalor yang diperlukan? 3. Apa yang dapatkamusimpulkan?