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Given the Standard Enthalpies of Formation for the Following Substances

Question 8

Multiple Choice

Given the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction. 2N2H4(g) Given the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction. 2N<sub>2</sub>H<sub>4</sub>(g) <font face= symbol ></font>2NO<sub>2</sub>(g) <font face= symbol ></font>3N<sub>2</sub>(g) <font face= symbol ></font>4H<sub>2</sub>O(g) <font face= symbol ></font>H<sub>rxn</sub> <font face= symbol ></font> ? kJ Substance<font face= symbol ></font>H <sub> </sub>in kJ/mol N<sub>2</sub>H<sub>4</sub>(g) <font face= symbol ></font>95.4 NO<sub>2</sub>(g) <font face= symbol ></font>33.1 H<sub>2</sub>O(g) <font face= symbol ></font>241.8 A) (<font face= symbol ></font>1,220 kJ) B) (<font face= symbol ></font>1,220 kJ) C) (<font face= symbol ></font>967 kJ/mol) D) (<font face= symbol ></font>967 kJ/mol) E) (<font face= symbol ></font>257 kJ/mol) 2NO2(g) Given the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction. 2N<sub>2</sub>H<sub>4</sub>(g) <font face= symbol ></font>2NO<sub>2</sub>(g) <font face= symbol ></font>3N<sub>2</sub>(g) <font face= symbol ></font>4H<sub>2</sub>O(g) <font face= symbol ></font>H<sub>rxn</sub> <font face= symbol ></font> ? kJ Substance<font face= symbol ></font>H <sub> </sub>in kJ/mol N<sub>2</sub>H<sub>4</sub>(g) <font face= symbol ></font>95.4 NO<sub>2</sub>(g) <font face= symbol ></font>33.1 H<sub>2</sub>O(g) <font face= symbol ></font>241.8 A) (<font face= symbol ></font>1,220 kJ) B) (<font face= symbol ></font>1,220 kJ) C) (<font face= symbol ></font>967 kJ/mol) D) (<font face= symbol ></font>967 kJ/mol) E) (<font face= symbol ></font>257 kJ/mol) 3N2(g) Given the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction. 2N<sub>2</sub>H<sub>4</sub>(g) <font face= symbol ></font>2NO<sub>2</sub>(g) <font face= symbol ></font>3N<sub>2</sub>(g) <font face= symbol ></font>4H<sub>2</sub>O(g) <font face= symbol ></font>H<sub>rxn</sub> <font face= symbol ></font> ? kJ Substance<font face= symbol ></font>H <sub> </sub>in kJ/mol N<sub>2</sub>H<sub>4</sub>(g) <font face= symbol ></font>95.4 NO<sub>2</sub>(g) <font face= symbol ></font>33.1 H<sub>2</sub>O(g) <font face= symbol ></font>241.8 A) (<font face= symbol ></font>1,220 kJ) B) (<font face= symbol ></font>1,220 kJ) C) (<font face= symbol ></font>967 kJ/mol) D) (<font face= symbol ></font>967 kJ/mol) E) (<font face= symbol ></font>257 kJ/mol) 4H2O(g) Hrxn ? kJ
SubstanceH Given the standard enthalpies of formation for the following substances, determine the reaction enthalpy for the following reaction. 2N<sub>2</sub>H<sub>4</sub>(g) <font face= symbol ></font>2NO<sub>2</sub>(g) <font face= symbol ></font>3N<sub>2</sub>(g) <font face= symbol ></font>4H<sub>2</sub>O(g) <font face= symbol ></font>H<sub>rxn</sub> <font face= symbol ></font> ? kJ Substance<font face= symbol ></font>H <sub> </sub>in kJ/mol N<sub>2</sub>H<sub>4</sub>(g) <font face= symbol ></font>95.4 NO<sub>2</sub>(g) <font face= symbol ></font>33.1 H<sub>2</sub>O(g) <font face= symbol ></font>241.8 A) (<font face= symbol ></font>1,220 kJ) B) (<font face= symbol ></font>1,220 kJ) C) (<font face= symbol ></font>967 kJ/mol) D) (<font face= symbol ></font>967 kJ/mol) E) (<font face= symbol ></font>257 kJ/mol) in kJ/mol
N2H4(g) 95.4
NO2(g) 33.1
H2O(g) 241.8


A) (1,220 kJ)
B) (1,220 kJ)
C) (967 kJ/mol)
D) (967 kJ/mol)
E) (257 kJ/mol)

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