The Temperature Rises from 25 $\Delta$ RU for the Combustion of Sucrose in KJ

question 104

Multiple Choice

The temperature rises from 25.00 °C to 29.00 °C when 3.50 g of sucrose undergoes combustion in a bomb calorimeter.Calculate _{$\Delta$ r}U for the combustion of sucrose in kJ $\mathrm { mol } ^ { - 1 }$ sucrose.The heat capacity of the calorimeter is 4.90 kJ ${ } ^ { \circ } \mathrm { C } ^ { - 1 }$ .The molar mass of sugar is 342.3 g $\mathrm { mol } ^ { - 1 }$ .

• A)-1.92 × 10³ kJ mol^-1
• B)1.92 × 10³ kJ mol^-1
• C)-1.23 × 10³ kJ mol^-1
• D)2.35 × 10⁴ kJ mol^-1

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