Abstract

The velocity and absorption of ultrasonic waves have been measured in aqueous solutions of poly (ethylene glycol). The velocity of ultrasonic waves has been obtained in the frequency range 1MHz-12MHz over a wide range of temperature. The concentration (by weight) ranged from 1% to 10% of poly (ethylene glycol) in water. The shear viscosity has also been measured. Measurements were carried out in the temperature range 35 oC to 65 oC. It has been observed that the velocity of ultrasonic waves increases with temperature at a given concentration, while as concentration is increased at a given temperature, velocity is found to increase. The shear viscosity and density also decrease with temperature

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