Given the Following $\Delta$ H° Values,
H₂(g)+ O₂(g) $\rarr$ H₂O(l) $\Delta$ H°_f = -285

question 46

Short Answer

Given the following $\Delta$ H° values,
H₂(g)+ O₂(g) $\rarr$ H₂O(l) $\Delta$ H°_f = -285.8 kJ/mol
H₂O₂(l) $\rarr$ H₂(g)+ O₂(g) $\Delta$ H°_rxn = 187.6 kJ/mol
calculate $\Delta$ H°_rxn for the reaction H₂O₂(l) $\rarr$ H₂O(l)+ O₂(g),

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Definitions:

Geologic Time

A system of chronological measurement that relates stratigraphy to time, used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events in Earth’s history.

Archaean

A member of the domain Archaea, a group of single-celled microorganisms that are distinct from bacteria and eukaryotes, often thriving in extreme environments.

Environmental Pressures

Various factors in the environment that can influence the survival, reproduction, and evolution of organisms, often leading to natural selection.

Heritable Changes

Alterations in a genetic material that can be passed on from one generation to another.