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The value of H° for the reaction below is -72 kJ. ________ kJ of heat are released when 5.5 mol of HBr is formed in this reaction.

User Andrina
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1 Answer

20 votes
20 votes

Answer:

-198 kJ

Step-by-step explanation:

Hello there!

In this case, as the reaction is not given but we can see that HBr is formed, we can infer that reaction is:


image

Whereas the -72 kJ per moles of HBr are:


image

Thus, by multiplying by the formed 5.5 moles of HBr, the total energy release is:


image

Best regards!

User Mhyousefi
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