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The enthalpy change for the process C(...

The enthalpy change for the process
`C("graphite") rarr C(g)`is called

A

heat of vapourization

B

heat of sublimation

C

heat of allotropic change

D

heat of atomization

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Verified by Experts

The correct Answer is:
A, B, C, D
`C("graphite") to C(g)`.The process is sublimation as well conversion of crystalline allotropic form (graphite) to amorphous form (gas carbon).
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FIITJEE-THERMODYNAMICS AND THERMOCHEMISTRY -SOLVED PROBLEMS (OBJECTIVE)
  1. The densities of graphite and diamond at 298 K are 3.31 g//cm^(3), res...

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  2. For the process H(2)O(l) (1 "bar", 373 K) rarr H(2)O(g) (1"bar", 373 K...

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  3. The value of log(10)K for a reaction A hArr B is (Given: Delta(f)H(298...

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  4. Smelting of iron ore takes place through this reaction 2Fe(2)O(3)(s)...

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  5. (1) For the given heat of reaction, (i) C(s)+O(2)(g)=CO(2)(g)+97 kca...

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  6. What is the amount of heat to be supplied to prepare 128g of CaCO(3) b...

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  7. Ionisation energy of A1=5137KJmol^(-1)(DeltaH) hydration of Al^(3+)=-4...

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  8. At 0^(@)C , ice and water are in equilibrium and DeltaS and DeltaG for...

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  9. 5 mol of an ideal gas expand reversibly from a volume of 8 dm^(3) to 8...

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  10. What is value of DeltaU for reversible isothermal evaporation of 90g w...

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  11. Which of the following statements is/are correct?

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  12. The heat change accompanying the reaction 2H(2)(g)+O(2)(g) to 2H(2)O...

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  13. The enthalpy change for the process C("graphite") rarr C(g)is called

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  14. Enthalpy change equal internal energy change when

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  15. During an adiabatic reversibly expansion of an ideal gas

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  16. One mole of an ideal monoatomic gas at 27^(@) C expands adiabatically ...

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  17. The standard enthalpies of formation of CO(2)(g) and HCOOH (l) are -39...

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  18. The value of standard free energy change (DeltaG^(@)) of a redox react...

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  19. Among the following, the intensive property is (properties are):

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  20. Among the following , the state funcation (s) is (are)

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