The Values of H°_rxn and S°_rxn Are Shown

question 19

Multiple Choice

The values of H°_rxn and S°_rxn are shown for the following equilibrium reaction. What makes the equilibrium constant larger at low temperature? 2NO₂(g) N₂O₄(g) H= -58.02 kJ/mol, S°-176.5 J/mol · K

• A) The negative value of  H  is dominant at all temperatures.
• B) The negative value of  S° is dominant at all temperatures.
• C) The negative value of  S° is combined with the small value of T.
• D) The negative value of  H  is combined with the small value of T.

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Definitions:

Genome

The complete set of DNA, including all of its genes, in an organism or cell.

Epigenetic Mark

A biological marker that is a result of changes in gene expression caused by mechanisms other than changes in the underlying DNA sequence.

DNA Molecule

The double-helix structure that contains the genetic instructions used in the development and functioning of all living organisms.

Double Helix

The structure of DNA, characterized by two spiraling strands connected by base pairs, resembling a twisted ladder.