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When 1g liquid naphthalene (C(10)H(8)) s...

When `1g` liquid naphthalene `(C_(10)H_(8))` solidifies, `149J` of heat is evolved. Calculate the enthalpy of fusion of naphthalene.

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To calculate the enthalpy of fusion of naphthalene, we will follow these steps: ### Step 1: Determine the Molar Mass of Naphthalene Naphthalene (C₁₀H₈) consists of 10 carbon atoms and 8 hydrogen atoms. The molar mass can be calculated as follows: - Molar mass of Carbon (C) = 12 g/mol - Molar mass of Hydrogen (H) = 1 g/mol ...
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CENGAGE CHEMISTRY ENGLISH-THERMODYNAMICS-Exercises (Subjective)
  1. If 2AI(s) +1(1)/(2) O(2)(g) rarr AI(2)O(3)(s), DeltaH =- 1667.8 kJ H...

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

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

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

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

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

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

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

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  9. What would be the heat released when:

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

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

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

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

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

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  15. Which of the following is an intensive property. Surface tension, mass...

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  16. State the first law of thermodynamics.

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  17. For the reactions, N(2)(g) +3H(2)(g) rarr 2NH(3)(g) predict, whether t...

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  18. Which has larger absolute entropy per mole? a. H(2)O(l) at 298 K or ...

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  19. The dissolution of ammonium chloride in water is an endothermic proces...

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  20. Does an aqueous solution of Mg^(2+) ions have larger entropy before or...

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