Knowee
Questions
Features
Study Tools

Identify why the use of bond enthalpy values would not be valid for the combustion of benzene, as shown in the following reaction equation: 2C6H6(l)+15O2(g)→12CO2(g)+6H2O(l)Benzene and water are both liquids and bond enthalpy values are measured for gaseous bonds.The equation is not balanced to reflect one mole of benzene.Bond enthalpy values differ from experimental enthalpy values.Bond enthalpy values are averaged for many different molecules and are not accurate

Question

Identify why the use of bond enthalpy values would not be valid for the combustion of benzene, as shown in the following reaction equation: 2C6H6(l)+15O2(g)→12CO2(g)+6H2O(l)Benzene and water are both liquids and bond enthalpy values are measured for gaseous bonds.The equation is not balanced to reflect one mole of benzene.Bond enthalpy values differ from experimental enthalpy values.Bond enthalpy values are averaged for many different molecules and are not accurate

...expand
🧐 Not the exact question you are looking for?Go ask a question

Solution

The use of bond enthalpy values would not be valid for the combustion of benzene for several reasons:

  1. Bond enthalpy values are measured for gaseous bonds: In the given reaction, benzene and water are both in the liquid state. Bond enthalpy values are typically measured for substances in the gaseous state. Therefore, using these values for substances in the liquid state may not provide accurate results.

  2. The equation is not balanced to reflect one mole of benzene: For accurate calculations, the equation should be balanced to reflect the combustion of one mole of benzene. In the given equation, two moles of benzene are being combusted, which could lead to inaccurate results if bond enthalpy values are used.

  3. Bond enthalpy values differ from experimental enthalpy values: Bond enthalpy values are theoretical values calculated using mathematical models. These values may not always match the actual, experimental values obtained in a laboratory setting. Therefore, using bond enthalpy values may not provide accurate results for the combustion of benzene.

  4. Bond enthalpy values are averaged for many different molecules and are not accurate: Bond enthalpy values are average values calculated from a variety of different molecules. These average values may not accurately represent the bond enthalpy of a specific molecule, such as benzene. Therefore, using these average values may not provide accurate results for the combustion of benzene.

This problem has been solved

Similar Questions

Identify why the use of bond enthalpy values would not be valid for the combustion of benzene,

The bond enthalpies for six selected chemical bonds are shown below.Bond Bond enthalpyΔH°298 (kJ/mol)H―H 436C―H 413C=O 532N―H 335O―H 499O=O 495For a reaction in which 2 moles of H2(g) reacts with 1 mole of O2(g) to form 2 moles of H2O(g), what is the heat of the reaction?A.1367 kJB.369 kJC.−629 kJD.−1996 kJ

A thermochemical equation is an equation which shows the heat involved in the process (the heat released or absorbed when a reaction takes place). Give the thermochemical equation for the combustion of benzene below.C6H6 (l) + 7½ O2 (g) —> 3 H2O (l ) + 6 CO2 (g)                 ΔH = - 3269 kJ*3 pointsC6H6 (l) + 7 ½ O2 (g) —> 3 H2O (l ) + 6 CO2 (g) - 3269 kJC6H6 (l) + 7 ½ O2 (g) —> 3 H2O (l ) + 6 CO2 (g) + 3269 kJC6H6 (l) + 7 ½ O2 (g) - 3269 kJ —> 3 H2O (l ) + 6 CO2 (g)C6H6 (l) + 7 ½ O2 (g) + 3269 kJ —> 3 H2O (l ) + 6 CO2 (g)

Question 16Calculate the standard enthalpy of combustion for the following reaction:C6H12O6(s) + 6O2(g) --> 6CO2(g) + 6H2O(l)

The amount of heat released for the hydrogenation of benzene was less than the expected value, indicating that the 𝜋𝜋 bonds in benzene were Type your answer here stable than expected.Save for LaterSubmit Answer

1/1

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.