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What is enthalpy of a system?...

What is enthalpy of a system?

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Why is the enthalpy (but not molar enthalpy) of a systemm an extensive property?

Explain with examples: (i) enthalpy of a system is an extensive property (ii) boiling point of a liquid is an intensive property (c) concentration is an intensive property.

Given an example of a process in which the change in enthalpy of the system is negative.

Give an example of a spontaneous process in which the change in enthalpy of the system is positive.

(i) Show that heat of reaction at constant volume is equal to the change in internal energy of the system. (ii) Show that heat of reaction at constant pressure is equal to the change in enthalpy of the system.

N_2(g) + 6H_2(g) overset to 4NH_3(g) What is the enthalpy of the above reaction when the enthalpy formation of ammonia is -46 kJ mol^-1 ?

PATHFINDER-THERMODYNAMICS-QUESTION BANK
  1. Define system and surrounding.

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  2. A gas absorbs 120J of heat and expands against the external pressure o...

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  3. What is enthalpy of a system?

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  4. Show that at constant volume Delta U=qv

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  5. Write one limitation of the first law of thermodynamics .

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  6. The latent heat of evaporation of Bromine at 59^@C at 1 atm is 29.2 KJ...

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  7. Explain the term state function of a system

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  8. for the reaction 2Cl(g)rarr Cl2(g) What are the signs of Delta H and D...

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  9. To increase the temperature of 31.75 mm of Cu from 23^@C to 28^@C ,50 ...

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  10. To increase the temperature of 31.75 mm of Cu from 23^@C to 28^@C ,50 ...

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  11. To increase the temperature of 31.75 mm of Cu from 23^@C to 28^@C ,50 ...

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  12. Which of the following are not state function? Entropy,temperature,hea...

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  13. At 25^@C What is the difference between DeltaH and DeltaS for the foll...

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  14. Establish the relation between Delta H and Delta U for a gaseous syste...

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  15. N2(g)+3H2(g)rarr 2NH3(g) Delta Hr^@=-92.4 KJ What is the standard en...

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  16. Write Hess's law.

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  17. Using the datas given calculate the heat of formation of ethylene. C(s...

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  18. Write the thermodynamic relation generally used to predict a reaction ...

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  19. The heats of oxidation of Mg and Fe are given: Mg+1/2O2 rarr MgO,Delta...

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  20. For the reaction at 298 k,2A +B rarr C, Delta H=400 KJ mol^(-1) and De...

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