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A spontaneous process is a process which...

A spontaneous process is a process which is instaneous.

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For a spontaneous process :-

A spontaneous process is an ...... process and occurs in ...... direction only.

For a process to be spontaneous :

Assertion :- In an isolated system the entropy increases due to spontanous process. Reason :- The processes in an isolated system are adiabatic.

State True/False All spontaneous process proceed in one direction only.

Assertion : An exothermic process which is non-spontaneous at high temperature may become spontaneous at low temperature. Reason : Spontaneous process is an irreversible process and may be reversed by some external agency.

Assertion (A). Spontaneous process is an irreversible process and may be reversed by some external agency. Reason (R). Decrease in enthalpy is a contributory factor for spontaneity

A: A non- spontaneous process becomes spontaneous when coupled with a suitable spontaneous reaction. R: The overall free energy of coupled spontaneous reaction is negative.

Whenever a spontaneous process takes place, it is accompanied by an increase in the total ...... of the ......

A spontaneous process is also called a ...... process.

CENGAGE CHEMISTRY ENGLISH-THERMODYNAMICS-Exercises (True/False)
  1. It is possible to calculate the value of DeltaH for the reaction H(2...

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  2. The enthalpy of combustion of dimond and enthalpy of formation of carb...

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  3. The SI unit of heat is 'calorie'.

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  4. Can we measure the absolute value of internal enegry?

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  5. w is positive when the work is done on the system. (T/F)

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  6. Heat of combustion is the amount of heat evolved when the number of mo...

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  7. The heat of neutralisation of HCI with NaOH is same as that of HNO(3) ...

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  8. The heat of neutralisation becomes large if either the acid or the bas...

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  9. The total amount of heat evolved or absorbed in a reaction depends upo...

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  10. A spontaneous process is a process which is instaneous.

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  11. A process which is accompained by decrease of energy is not always spo...

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

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  13. For the equilibrium , DeltaG = - RT In K.

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  14. For the combustion of benzene to gaseous carbon dioxide and liquid wat...

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  15. Melting of ice involves increases in randomness and increase in enthal...

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  16. Show that in an isothermal expansion of an ideal gas, a DeltaU = 0 and...

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  17. A pack of cards randomly shuffled has more entropy than a pack of arra...

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  18. For adiabatic process, DeltaH = 0

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  19. Neither q nor w is a state function but q +w is a state function. Expl...

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  20. In the reaction: 2CO(g) +O(2)(g) hArr 2CO(g), entropy decreases.

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