A bomb calorimeter can be used to measure the enthalpy of reaction for combustions, such as the combustion of diborane represented by the following balanced equation: B2H6(g)+3O2(g)=B2O3(s)+3H2O(g) ΔHcombustion for this process is –1958 kJ/mol. Assume that 0.411 g of diborane is combusted in a calorimeter whose heat capacity (Ccalorimeter) is 7.854 kJ/°C at 22.61°C. What is the final temperature of the calorimeter?

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A bomb calorimeter can be used to measure the enthalpy of reaction for combustions, such as the combustion of diborane represented by the following balanced equation:

B2H6(g)+3O2(g)=B2O3(s)+3H2O(g)

ΔHcombustion for this process is –1958 kJ/mol.

Assume that 0.411 g of diborane is combusted in a calorimeter whose heat capacity (Ccalorimeter) is 7.854 kJ/°C at 22.61°C. What is the final temperature of the calorimeter?

B,H,(g) + 30,(g) –→ B,0,(s) + 3H,0(g)
B2O3(s)
+ ЗН,
Transcribed Image Text:B,H,(g) + 30,(g) –→ B,0,(s) + 3H,0(g) B2O3(s) + ЗН,
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