Open Question
Calculate the heat evolved per mole on combustion of each substance to yield co2(g) and h2o(g).
8. Thermochemistry
Enthalpy of Formation
Back8. Thermochemistry
Enthalpy of Formation
- Open QuestionCalculate delta h for the following reaction
- Open Question
Calculate the enthalpy of the reaction 2NO(g) + O2(g) → 2NO2(g) given the following reactions and enthalpies of formation: 1/2N2(g) + O2(g) → NO2(g), ΔH∘a=33.2 kJ 1/2N2(g) + 1/2O2(g) → NO(g), ΔH∘b=90.2 kJ
- Open Question
Using the table below, estimate δh for the "water splitting reaction": H2O(g) → H2(g) + 12 O2(g).
- Open Question
Which answer best describes the transfer of heat that occurs when 1.20 mol of H2 reacts?
- Open Question
Which answer best describes the transfer of heat that occurs when 1.70 mol of H2 reacts?
- Open Question
Which answer best describes the transfer of heat that occurs when 1.40 mol of H2 reacts?
- Open Question
Given the following at 25°C, calculate ΔHf for HCN(g) (in kJ/mol) at 25°C.
- Open Question
In many ways, hydrogen as a biofuel compares very favorably to ethanol and other fuels.
- Open Question
Which answer best describes the transfer of heat that occurs when 1.30 mol of H2 reacts?
- Open Question
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)
- Open Question
What is the change in enthalpy associated with the combustion of 530 g of methane (CH4)?
- Open Question
The enthalpy of the reaction is –2,840 kJ. What is the heat of combustion, per mole, of glucose?
- Multiple ChoiceGiven the reaction 2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(l), what is the standard enthalpy change (ΔH°) of this reaction in kJ?
- Multiple ChoiceA 0.1326 g sample of magnesium was burned in an oxygen bomb calorimeter. The total heat capacity of the calorimeter plus water was 5,760 J/°C. If the temperature rise of the calorimeter with water was 0.570°C, calculate the enthalpy of combustion of magnesium in kJ/mol.