Solved

At 25 \circ C, the Following Heats of Reaction Are Known

Question 95

Multiple Choice

At 25 \circ C, the following heats of reaction are known:
2ClF( g) +O2( g) Cl2O( g) +F2O( g) ΔHrxn=167.4 kJ/mol2ClF3( g) +2O2( g) Cl2O( g) +3 F2O( g) ΔHrxn=341.4 kJ/mol2 F2( g) +O2( g) 2 F2O( g) ΔHrxn=43.4 kJ/mol\begin{array}{ll}2 \mathrm{ClF}(\mathrm{~g}) +\mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{Cl}_{2} \mathrm{O}(\mathrm{~g}) +\mathrm{F}_{2} \mathrm{O}(\mathrm{~g}) & \Delta \mathrm{H}_{\mathrm{rxn}}^{\circ}=167.4 \mathrm{~kJ} / \mathrm{mol} \\2 \mathrm{ClF}_{3}(\mathrm{~g}) +2 \mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{Cl}_{2} \mathrm{O}(\mathrm{~g}) +3 \mathrm{~F}_{2} \mathrm{O}(\mathrm{~g}) & \Delta \mathrm{H}_{\mathrm{rxn}}^{\circ}=341.4 \mathrm{~kJ} / \mathrm{mol} \\2 \mathrm{~F}_{2}(\mathrm{~g}) +\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{~F}_{2} \mathrm{O}(\mathrm{~g}) & \Delta \mathrm{H}_{\mathrm{rxn}}^{\circ}=-43.4 \mathrm{~kJ} / \mathrm{mol}\end{array}
At the same temperature, use the above data to calculate the heat released (kJ) when 3.40 moles of ClF(g) reacts with excess F2: ClF(g) + F2(g) \rarr ClF3(g)


A) 109 kJ
B) 233 kJ
C) 370. kJ
D) 465 kJ
E) 1,580 kJ

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Unlock this Answer For Free Now!

View this answer and more for free by performing one of the following actions

qr-code

Scan the QR code to install the App and get 2 free unlocks

upload documents

Unlock quizzes for free by uploading documents