sifat cairan - kimia fisika

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SIFAT CAIRAN KIMIA FISIKA
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DEFINISI CAIRAN Cairan adalah salah satu dari tiga fase benda yang volumenya tetap dalam kondisi suhu yang tetap; dan, bentuknya ditentukan oleh wadah penampungnya.
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SIFAT-SIFAT CAIRAN Viskositas Titik Didih Titik Beku Pressure Flash Point
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VISKOSITAS Viskositas adalah suatu besaran yang menggambarkan sifat kekentalan dari zat cair atau pun gas. Faktor-faktor yang mempengaruhi viskositas: Tekanan Temperatur Adanya zat lain Berat molekul Ikatan
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TITIK DIDIH (BOIL POINT) Cairan biasanya mengembang bila dipanaskan dan menyusut bila didinginkan. Cairan pada titik didih tertentu berubah menjadi gas, dan pada titik bekunya, berubah menjadi padat. Titik didih suatu cairan tergantung dari sifat dan tekanan atmosfer dimana titik didih itu ditentukan.
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TITIK BEKU / TITIK LEBUR Titik beku suatu cairan dapat didefinisikan sebagai suhu dimana fase padat dan fase cair berada dalam keadaan setimbang. Titik beku sama dengan titik leleh, yakni suhu saat bahan berubah dari keadaan padat ke keadaan cair.
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