Phase transitions

Heat capacity of alkali metal silicates

L. T. Denisova, N. V. Belousova, V. M. Denisov

Siberian Federal University, Krasnoyarsk, Russia

Abstract: It was established that at 298 K the molar heat capacity of alkali metal silicates K$_2$O $\cdot$ $n$SiO$_2$, Rb$_2$O $\cdot$ $n$SiO$_2$ and Cs$_2$O $\cdot$ $n$SiO$_2$ changes linearly when changing $n$ from 1 to 4. Based on the dependencies C$^o_{p,298}= f(n)$, the values of the heat capacities K$_2$O, Rb$_2$O and Cs$_2$O have been specified.

Keywords: heat capacity, oxides and silicates of alkali metals.

Received: 10.12.2022
Revised: 10.12.2022
Accepted: 12.12.2022

DOI: 10.21883/FTT.2023.03.54748.551

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