TAILIEUCHUNG - Báo cáo vật lý: "The Hidden Property of Arrhenius-type Relationship: Viscosity as a Function of Temperature"

Tuyển tập các báo cáo nghiên cứu khoa học trên tạp chí khoa học vật lý quốc tế đề tài: The Hidden Property of Arrhenius-type Relationship: Viscosity as a Function of Temperature | Journal of Physical Science Vol. 21 1 29-39 2010 29 The Hidden Property of Arrhenius-type Relationship Viscosity as a Function of Temperature Sunny Goh Eng Giap Department of Engineering Science Faculty of Science and Technology Universiti Malaysia Terengganu Mengabang Telipot 21030 Kuala Terengganu Terengganu Malaysia Corresponding author Abstract In this paper an equation to replace the well-known Arrhenius-type relationship was derived. This is because the activation energy constant is not yet in its fundamental form. The model maintains the traditional properties of activation energy and infinite-temperature viscosity constants and it contains a new constant that is the zero-temperature viscosity. The ration of zero- and infinite-temperature represents the value of fundamental activation energy. This model was tested using six vegetable oils and has proven its accuracy R-squared . Viscosity - temperature stability refers to the difference between the zero- and infinite-temperature viscosities rather than the activation energy. Keywords viscosity Arrhenius-type relationship temperature rheology Abstrak Dalam penulisan ini satu persamaan untuk menggantikan hubungan jenis Arrhenius telah diterbitkan. Ini adalah kerana pemalar tenaga keaktifan daripada persamaan itu bukan dalam bentuk asas. Persamaan baru ini mengekalkan sifat asal tenaga keaktifan dan kelikatan pada suhu tidak terhingga dan ia merangkumi pemalar baru iaitu kelikatan pada suhu sifar. Nisbah kelikatan pada suhu sifar dan kelikatan pada suhu tidak terhingga merupakan nilai asas untuk pemalar tenaga keaktifan. Model ini telah diuji dengan enam minyak sayur-sayuran dan kejituannya terbukti R kuasa dua . Kestabilan kelikatan - suhu merujuk pada perbezaan kelikatan pada suhu sifar dan kelikatan pada suhu tidak terhingga bukan nilai tenaga teraktifan itu sendiri. Kata kunci kelikatan hubungan jenis Arrhenius suhu reologi 1. INTRODUCTION Viscosity is one of the most .

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