Penentuan Viskositas Larutan Gula Menggunaan Metode Vessel Terhubung Viscosimeter Berbasis Video Based Laboratory dengan Software Tracker

Authors

  • Rr. Sinta Kusuma Ningrum Program Studi Magister Pendidikan Fisika, Universitas Ahmad Dahlan
  • Moh. Toifur Program Studi Magister Pendidikan Fisika, Universitas Ahmad Dahlan

DOI:

https://doi.org/10.12928/jrkpf.v1i2.1997

Abstract

Telah dilakukan uji yang bertujuan untuk menentukan viskositas larutan gula. Metode yang digunakan adalah metode vessel terhubung viscosimeter. Hubungan antara -ln(2h1/h0-1) terhadap t dinyatakan dengan persamaan -ln(2h1/h0-1)=(D4pg/128AL)t. Penelitian dimulai dengan menentukan viskositas air murni sebagai kalibrasi alat, dari hasil kalibrasi diperoleh nilai konversi sebesar 285, 49. Kemudian nilai ini selanjutnya digunakan dalam penentuan nilai viscositas larutan gula. Penentuan nilai koefisien viscositas larutan gula dilakukan dengan fitting data menurut garis lurus,h -ln(2h1/h0-1) sebagai sumbu vertikal dan t sebagai sumbu horizontal, dengan a adalah gradien garis. Dari hasil analisis diperoleh nilai viskositas larutan gula 10 % adalah 1,02±0,02 poise, 20% adalah 1,05±0,02 poise, dan 30% adalah 1,13±0,02 poise.

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Published

2014-10-06

Issue

Vol. 1 No. 2 (2014): Vol 1: Oktober 2014

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