Theoritical Evaluation of Ultrasonic Velocities in Binary Liquid Mixtures ofN-Methyl-2-pyrrolidone at Different Temperatures with Some Cyclic Compounds

K Rayapa Reddy,C Rambabu,G Srinivasa Rao,D Bala Karuna Kumar

doi:10.1155/2012/571521

K Rayapa Reddy, C Rambabu + Show 2 more

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https://doi.org/10.1155/2012/571521

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Journal: Journal of chemistry	Publication Date: Jan 1, 2012
Citations: 1	License type: CC BY 3.0

Affiliation: Acharya Nagarjuna University

Abstract

Ultrasonic velocities and densities of the binary liquid mixtures ofN-methyl-2-Pyrrolidone (NMP) with Cyclohexylamine (CHA), Cyclohexanol (CHOL) and Cyclohexene(CHE) at a temperature range of 303.15 to 318.15 K over the entire composition range were measured. The theoretical values of ultrasonic velocity were evaluated using the Nomoto's relation(UNR), Impedence relation(UIR), Ideal mixing relation(UIMR), Jungie's relation(UJR) and Rao's specific velocity relation(UR).The molecular interaction parameter (α) was computed by using the experimental and theoretical ultrasonic velocity values. The variation of interaction parameter with the composition of the mixture has been discussed in terms of molecular interactions.

Highlights

In resent years measurement of ultrasonic investigations find extensive applications in determining the physicho-chemical behavior of liquid mixtures[1,2,3,4,5]
This investigation presents the evaluation of ultrasonic velocity using Nomoto's relation, ideal mixtures relation, impedence relation, Rao's specific velocity relation and Junjie's relation for cyclohexylamine, cyclohexanol, cyclohexene with N-Methyl-2-Pyrrolidone at temperatures of 303.15-318.15 K with an intrevel of 5K
For the formation of ideal mixing relation, there is an assumption that the ratio of specific heats of ideal mixtures and the volumes are equal, which indicates that there is no possibility of molecular interactions

Summary

Introduction

In resent years measurement of ultrasonic investigations find extensive applications in determining the physicho-chemical behavior of liquid mixtures[1,2,3,4,5]. This investigation presents the evaluation of ultrasonic velocity using Nomoto's relation, ideal mixtures relation, impedence relation, Rao's specific velocity relation and Junjie's relation for cyclohexylamine, cyclohexanol, cyclohexene with N-Methyl-2-Pyrrolidone at temperatures of 303.15-318.15 K with an intrevel of 5K.

Results

Conclusion