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Author Question: The heat of combustion of benzene, C6H6, is 41.74 kJ/g. Combustion of 3.21 g of benzene causes a ... (Read 618 times)

bb

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Question 1

The heat combustion of acetylene, C2H2(g), at 25°C is –1299 kJ/mol. At this temperature, ΔHf° values for CO2(g) and H2O(l) are –393 and –286 kJ/mol, respectively. Calculate ΔHf° for acetylene.

2376 kJ/mol
625 kJ/mol
227 kJ/mol
–625 kJ/mol
–227 kJ/mol

Question 2

The heat of combustion of benzene, C6H6, is –41.74 kJ/g. Combustion of 3.21 g of benzene causes a temperature rise of 3.95°C in a certain bomb calorimeter. What is the heat capacity of this bomb calorimeter?

529 kJ/°C
33.9 kJ/°C
0.304 kJ/°C
5.65 kJ/°C
134 kJ/°C


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Marked as best answer by bb on Mar 21, 2021

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