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Meaning of subscript r

Posted: Mon Feb 18, 2019 3:28 pm
by Sierra Cheslick 2B
What does the subscript "r" mean when used in relation to either deltaH or deltaS? This is used in the solutions manual for 9.67 in the 6th edition.

Re: Meaning of subscript r

Posted: Mon Feb 18, 2019 3:34 pm
by Katie Sy 1L
I'm not sure but I think it just means reaction

Re: Meaning of subscript r

Posted: Mon Feb 18, 2019 3:45 pm
by Sydney To 1D
The subscript r is an abbreviation of "reaction." Thus delta H "r" would imply the change in enthalpy of the reaction and delta S "r" would signify the entropy change of the reaction.

Re: Meaning of subscript r

Posted: Mon Feb 18, 2019 3:48 pm
by Albert Duong 4C
r signals that its for a reaction, but it doesn't really change anything so don't worry about it.