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An endothermic process is non-spontaneou...

An endothermic process is non-spontaneous at some temperature . It can be spontaneous at………….temperature.

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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): An exothermic process, non-spontaneous at high temperature, may become spontaneous at low temperature. Reason (R ) : With decrease in temperature, randomness (entropy) decreases.

Assertion (A): May endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperature. Reason (R ) : Entropy of the system increases with increase in temperature.

For a process to be spontaneous :

In which case, process will be spontaneous at all temperature?

In which case, process will be spontaneous at all temperature?

For an endothermic reaction to be spontaneous

A reaction is spontaneous at low temperature but non- spontaneous at high temperature. Which of the following is true for the reaction?

Which of the following proces is (are) expected to be spontaneous at higher temperature but non-spontaneous at lower temperature?

A process is non-spontaneous when DeltaS_("total") lt 0 .

CENGAGE CHEMISTRY ENGLISH-THERMODYNAMICS-Exercises (Fill In The Blanks)
  1. A process which can take place by itself or by initiation is called a…...

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  2. For a process to be spontaneous at constant T and P :

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  3. An endothermic process is non-spontaneous at some temperature . It ca...

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  4. Coal and petrolem are called……………..fuels.

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  5. In an endothermic reaction, the total enthalpy of reactant is………………tha...

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  6. H(2)(g)+(1)/(2)O(2)(g)rarrH(2)O(l), DeltaH =- 286 kJ 2H(2)(g)+O(2)(g...

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  7. C(4)H(10)+(13)/(2)O(2)(g)rarr4CO(2)(g)+5H(2)O(l), DeltaH =- 2878 kJ ...

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  8. HCI +NaOH rarr NaCI +H(2)O, DeltaH =- 57.1 kJ mol^(-1) DeltaH is the...

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  9. C(s) to C(g) , DeltaH = 716.7 kJ DeltaH is the heat of …………… of gr...

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  10. C(s) to C(g) , DeltaH = 716.7 kJ DeltaH is the heat of …………… of gr...

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  11. H(2)O(s) rarr H(2)O(l), DeltaH = 6.01 kJ DeltaH is the heat of ……………...

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  12. H(2)O(l) rarr H(2)O(s), DeltaH =- 6.01 kJ DeltaH is the heat of …………...

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  13. H(2)O(l) rarr H(2)O(g), DeltaH = +40.7 kJ DeltaH is the heat of …………...

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  14. H(2)O(g) rarr H(2)O(l), DeltaH =- 40.7 kJ DeltaH is the heat of……………...

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  15. What is the sign convention for heat ?

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  16. A system is……………..if it cannot exchange matter and energy with the sur...

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  17. The entropy of gases is always……………….than that of liquids.

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  18. Heat of reaction at constant pressure is………….. .

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  19. A bomb calorimeter is used to measure the value of……………….at constant……...

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  20. Delta^(Theta)G(standard free energy change) is free energy change for ...

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