23 Consider the hypothetical thermochemical equation 3 A+B 2C for which AH = 71.5 kJmol. %3D If you have 5.30 moles of A, how much heat would be absorbed? O of 1 point earned 10 attempts remaining If the reaction absorbs 345 kJ of heat, how many moles of C would be produced? O of 1 point earned 10 attempts remaining What would AH be for the reaction 2 C-3A+B? C. O of 1 point earned 10 attempti remaining

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**Thermochemistry Exercise**

Consider the hypothetical thermochemical equation:

\[ 3 \, \text{A} + \text{B} \rightarrow 2 \, \text{C} \]

For this reaction, the enthalpy change \(\Delta H\) is 71.5 kJ/mol.

**Questions:**

**a.** If you have 5.30 moles of A, how much heat would be absorbed?
- \[ \text{0 of 1 point earned} \]
- 10 attempts remaining

**b.** If the reaction absorbs 345 kJ of heat, how many moles of C would be produced?
- \[ \text{0 of 1 point earned} \]
- 10 attempts remaining

**c.** What would \(\Delta H\) be for the reaction \(2 \, \text{C} \rightarrow 3 \, \text{A} + \text{B}\)?
- \[ \text{0 of 1 point earned} \]
- 10 attempts remaining

**d.** What would \(\Delta H\) be for the reaction \(9 \, \text{A} + 3 \, \text{B} \rightarrow 6 \, \text{C}\)?
- \[ \text{0 of 1 point earned} \]
- 10 attempts remaining

**e.** Which one of the following reactions would have an enthalpy change of \(-2 \times \Delta H\)? Here, \(\Delta H\) refers to the enthalpy change of the original reaction.
- \[ \text{0 of 1 point earned} \]
- 10 attempts remaining

---

This exercise involves calculating enthalpy changes based on stoichiometry and understanding the relationship between reaction stoichiometry and enthalpy changes.
Transcribed Image Text:**Thermochemistry Exercise** Consider the hypothetical thermochemical equation: \[ 3 \, \text{A} + \text{B} \rightarrow 2 \, \text{C} \] For this reaction, the enthalpy change \(\Delta H\) is 71.5 kJ/mol. **Questions:** **a.** If you have 5.30 moles of A, how much heat would be absorbed? - \[ \text{0 of 1 point earned} \] - 10 attempts remaining **b.** If the reaction absorbs 345 kJ of heat, how many moles of C would be produced? - \[ \text{0 of 1 point earned} \] - 10 attempts remaining **c.** What would \(\Delta H\) be for the reaction \(2 \, \text{C} \rightarrow 3 \, \text{A} + \text{B}\)? - \[ \text{0 of 1 point earned} \] - 10 attempts remaining **d.** What would \(\Delta H\) be for the reaction \(9 \, \text{A} + 3 \, \text{B} \rightarrow 6 \, \text{C}\)? - \[ \text{0 of 1 point earned} \] - 10 attempts remaining **e.** Which one of the following reactions would have an enthalpy change of \(-2 \times \Delta H\)? Here, \(\Delta H\) refers to the enthalpy change of the original reaction. - \[ \text{0 of 1 point earned} \] - 10 attempts remaining --- This exercise involves calculating enthalpy changes based on stoichiometry and understanding the relationship between reaction stoichiometry and enthalpy changes.
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