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One of the most important physical characteristics of seawater is its temperature. In most of the ocean, temperature is the primary determinant of density. Nowadays sea water is used in houses and industrial purpose. For that, the nature of the sea water should be analyzed. In the present study, the physical properties like ultrasonic velocity(U), density(ρ), and viscosity(η) have been measured for sea water at various temperatures 308K, 318K, 328K and 338K. Using these experimental data, various parameters like adiabatic compressibility(β_a),free length(L_f),acoustic impedance(Z),free volume(V_f),internal pressure(π_i),relaxation time(τ), Enthalpy(H) have been calculated. On the basis of values, the effect of temperature variations on sea water has also been studied and the results are interpreted.
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