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"Internal energy is a state function." E...

"Internal energy is a state function." Explain.

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"Work is not a state function." Explain.

Assertion: Under adiabatic free expansion, ((dU)/(dV))_(T) is +ve when attractive forces are dominant between gas molecules [U,V,T respresent internal energy, volume and temperature of gas respectively] Reason: Internal energy is a state function.

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The internal energy of a gas contained in a beaker is U, if the box starts moving with velocity V, then internal energy of the gas will be.

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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-THERMODYNAMICS-Important Questions
  1. What are open, closed and isolated systems ? Give one example for each...

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  2. Define the state function and state variables. Give examples.

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  3. "Internal energy is a state function." Explain.

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  4. "Work is not a state function." Explain.

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  5. Explain the state function 'enthalpy, H'. What is the relationship bet...

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  6. Explain extensive and intensive properties.

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  7. Define heat capacity. What are C(p) and C(v)? Show that C(p)-C(v)=R.

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  8. Explain the determination of DeltaU of a reaction calorimetrically.

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  9. Explain the determination of DeltaH of a reaction calorimetrically:

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  10. What is enthalpy of a reaction? Explain the standard enthalpy of a rea...

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  11. What is the standard enthalpy of formation? Explain it with example.

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  12. Define and explain the enthalpy of combustion (Delta(c)H^(theta)).

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  13. Define and explain the bond enthalpy (Delta("bond")H^(theta)).

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  14. What is the bond enthalpy of C-H bond of CH(4)?

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  15. Define ionisation enthalpy and electron affinity.

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  16. Explain the spontaneity of a process.

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  17. What is entropy? Explain with examples.

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  18. Which formulate in the following are correct? a) G=H-TS b) DeltaG(...

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  19. State the third law of thermodynamics.

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  20. Explain the mole concept.

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