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During the evaporation of a liquid,...

During the evaporation of a liquid,

A

the enthalpy decreases

B

the enthalpy increases

C

the enthalpy remains unchanged

D

the internal energy decreases

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CHETANA PUBLICATION-Chemical Thermodynamics-EXERCISE
  1. If the pressure of asystem isnot fixed, the enthalpy change can be def...

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  2. The difference between heats of reaction at constant pressure and cons...

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  3. During the evaporation of a liquid,

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  4. For an endothermic reaction,where DeltaH represents the enthalpy of th...

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  5. You are given the following two reactions : CH(4(g))+2O(2(g))rarrCO(2(...

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  6. The activation energy of exothermic reaction is 20 kj. The heat of the...

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  7. Translational energy is not prossessed by

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  8. The internal energy of a system can be changed by

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  9. The change in the internal energy of a system for 1 mole of a gas is e...

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  10. The molar heat capacity of water is if its specific heat capacity is 4...

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  11. For two moles of an ideal gas, which of the following is true?

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  12. Which of the following is true?

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  13. The molar heat capacity of water is if its specific heat capacity is 4...

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  14. Calculate the heat of reaction at 298 K for the reactionC2H(4(g)) + H2...

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  15. The enthalpies of elements in their standard states are taken as

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  16. The standard heat of formation of diamond is

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  17. Which of the following values of DeltafH represents the least stable p...

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  18. The enthalpies of formation of N2O and NO at 298 K are 82 and 90 kJ mo...

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  19. The latent heat of vaporization of a liquid at 500 K at1atm pressure i...

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  20. For a gaseous reaction involving complete combustion of isobutane,

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