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identify the correct statement regarding...

identify the correct statement regarding a spontaneous process:

A

For a spontaneous process in an isolated system, the change in entropy is positive

B

Endothermic processes are never spontaneous

C

Exthermic processes are always spontaneous

D

Lowering of energy in the reaction process is the only criterion for spontaneity

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The correct Answer is:
A
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ALLEN-THERMODYNAMICS -EXERCISE -1B
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  8. identify the correct statement regarding a spontaneous process:

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  10. Standard entropies of X(2), Y(2) and XY(3) are 60, 40 and 50 JK^(–1) m...

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  11. on the basis of the following thermochemical data [Delta(f) G^(@) H ^...

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  13. The standard enthalpy of formation of NH3 is -46.0 kJ mol^(-1). If the...

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  14. A system absorbs reversibly 600 J of heat and performs 250 J of work. ...

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  15. For reversible melting of ice at 0^(@)C and 1 atm. Pressure, the value...

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  16. The entropy change involved in the isothermal reversible expansion of ...

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  17. The value of enthalpy change (DeltaH) for the reaction C2H5OH(l) + 3...

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  18. Consider the reaction, 4 N O (2) (g) + O(2) (g) to 2 N(2) O (5) (g) ...

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