C (s) + O2 (g) →CO2, (g); DH = –94.3 kcal/mol

CO (g) + O2(g) → CO2 (g); DH = – 67.4 kcal/mol

O2(g) → 2O (g); ΔH = 117.4 kcal/mol

CO (g) → C (g) + O(g) ; ΔH = 230.6 kcal/mol

Calculate ΔH for C (s) → C (g) in kcal/mol.

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#Question id: 8864

#XL - T Zoology

Corals are most closely related to which group?

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#Question id: 19593

#XL - P Chemistry

The ions O2-, F–, Na+, and Mg2+ are referred to as __________

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#Question id: 4618

#XL - T Zoology

Which of the following observations helped Darwin shape his concept of descent with modification?

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#Question id: 1682

#XL - Q Biochemistry

Extensive allelic polymorphism is found in MHC:

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#Question id: 9269

#XL - Q Biochemistry

The distribution of electrons in the excited molecule is somewhat different from the distribution in the groundstate molecule, Absorption of blue light excites the chlorophyll to a higher energy state than absorption of red light because