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Ethylene on combustion gives carbon diox...

Ethylene on combustion gives carbon dioxide and water. Its heat of combustion is `1410.0 kJ mol^(-1)`. If the heat of formation of `CO_(2)` and `H_(2)O` are `393.3 kJ` and `286.2 kJ`, respectively. Calculate the heat of formation of ethylene.

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To calculate the heat of formation of ethylene (C₂H₄) from the given data, we can use Hess's law, which states that the total enthalpy change for a reaction is the sum of the enthalpy changes for the individual steps of the reaction. ### Step-by-Step Solution: 1. **Write the combustion reaction of ethylene:** The combustion of ethylene can be represented as: \[ \text{C}_2\text{H}_4(g) + 3\text{O}_2(g) \rightarrow 2\text{CO}_2(g) + 2\text{H}_2\text{O}(l) ...
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CENGAGE CHEMISTRY ENGLISH-THERMODYNAMICS-Exercises (Subjective)
  1. Ethylene on combustion gives carbon dioxide and water. Its heat of com...

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  2. Calculate the heat of formation of acetic acid form the following date...

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  3. State the third law of thermodynamics.

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  4. Calculate the heat of formation of anhydrous Al2Cl6 from the following...

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  5. Calculate the heat of formation of n butane from the followinf data: ...

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  6. Calculate the heat of combustion of benzene form the following data: ...

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  7. If 2AI(s) +1(1)/(2) O(2)(g) rarr AI(2)O(3)(s), DeltaH =- 1667.8 kJ H...

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  8. The thermochemical equation for solid and liquid rocket fuel are given...

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  9. When 1g liquid naphthalene (C(10)H(8)) solidifies, 149J of heat is evo...

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  10. a. A cylinder of gas is assumed to contain 11.2 kg of butane. If a nor...

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  11. The free enegry changes for the two reactions given below are a. SO(...

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  12. Given that: i. C("graphite") +O(2)(g) rarr CO(2)(g), DeltaH =- 393.7...

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  13. Given: i. H(g) +CI(g) rarr HCI(g) DeltaH =- 431 kJ ii. HCI(g) +aq ...

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  14. Given: NaCI(s) +aq rarr Na^(o+) (aq) +CI^(Theta) DeltaH = 3.9 kJ N...

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  15. What would be the heat released when:

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  16. Enthalpy of neutralisation of acetic acid by NaOh is -50.6 kJ mol^(-1)...

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  17. The bond energies of C=C and C-C at 298 K are 590 and 331 kJ mol^(-1),...

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  18. An athelete is given 100g of glucose (C(6)H(12)O(6)) of energy equival...

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  19. How much heat is liberated when one mole of gaseous Na^(o+) combines w...

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  20. State a chemical reaction in which DeltaH and DeltaU are equal .

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