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Ultrasonic study of nitric acid

机译:硝酸的超声研究

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Ultrasonic velocity was measured by an automatic pulse-echo velocimeter at various temperatures in nitric acid at various concentrations ranging from 20 to 99%. The various parameters i.e. molar sound velocity, specific acoustic impedance, adiabatic compressibility, intermolecular free length for the solution and the ultrasonic velocity of pure nitric acid were computed from the measurement results. Excess ultrasonic velocity, excess molar volume, excess adiabatic compressibility and excess intermolecular free length, were also calculated. The results show that with increasing concentration of nitric acid the strength of ion-ion interaction in the solution may first increase to a maximum and then decreases.
机译:超声波速度通过自动脉冲回波测速仪在硝酸中各种温度下以20%至99%的各种浓度测量。由测量结果计算出各种参数,即摩尔声速,比声阻抗,绝热可压缩性,溶液的分子间自由长度和纯硝酸的超声速度。还计算了过量的超声速度,过量的摩尔体积,过量的绝热可压缩性和过量的分子间自由长度。结果表明,随着硝酸浓度的增加,溶液中离子相互作用的强度可能首先增加到最大值,然后降低。

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