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Specific Impulse and Absolute Chemical Hardness

11 September 2020, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

The present work is dedicated to show that there are relationships between the absolute chemical hardness (η) of monopropellants and their specific impulse (Is). A total of sixteen monopropellants have been modelled and the absolute hardness obtained by quantum chemical calculations. The following equation was obtained: Is = 17.562 η + 125.551, providing specific impulse results in very good agreement with reference values.

Keywords

Specific impulse
absolute hardness,
empirical equations
semi-empirical

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Version History

Sep 11, 2020 Version 1

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The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv.12921455.v1
D O I: 10.26434/chemrxiv.12921455.v1 [opens in a new tab]

Author’s competing interest statement

There is not any conflict of interest

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