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For an exothermic reaction to be spontan...

For an exothermic reaction to be spontaneous (`Delta`S = negative)

A

Temperature must be high

B

Temperature must be zero

C

Temperature may have any magnitude

D

Temperature must be low

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-THERMODYNAMICS-SECTION-A
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  2. A reaction occurs spontaneously in forward direction if

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  3. For an exothermic reaction to be spontaneous (DeltaS = negative)

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  4. The enthalpy change of a reaction does not depend on

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  5. The free energy change for a reversible reaction at equilibrium is: ...

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  6. In a chemical reaction, Delta H = 150 kJ and Delta S = 100 JK^(-1) at ...

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  9. The free energy change, DeltaG = 0, when

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  10. If an insulated container containing liquid is stirred with a paddle t...

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  13. In thermodynamics, a process is called reversible when

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  14. X(g) + 2Y(g) rarr 2Z(g) + 3A(g) The change in enthalpy at 27^(@)C is 7...

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  15. In a spontaneous process the system undergoes

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  16. A quantity of an ideal gas at 20^(@)C reversibly expands against a con...

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  17. When the common salt dissolves in water, the entropy of the system inc...

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  18. Pick the extensive property from the given options

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