- the branch of chemistry dealing with the relationship between chemical action and heat.
Origin of thermochemistry
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the branch of chemistry concerned with the study and measurement of the heat evolved or absorbed during chemical reactions
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for thermochemistry
Online Etymology Dictionary, © 2010 Douglas Harper
- The study of the chemistry of heat and heat-associated chemical phenomena.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- The branch of chemistry that is concerned with the heat generated by chemical reactions and by changes of state.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.