Home
Class 12
CHEMISTRY
Identify the correct statement regarding...

Identify the correct statement regarding a spontaneous process.

A

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

B

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

C

Endothermic processes are never spontaneous.

D

Exothermic processes are always spontaneous.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|97 Videos

  • CHEMICAL KINETICS

    TARGET PUBLICATION|Exercise Evaluation test|13 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    TARGET PUBLICATION|Exercise 7|3 Videos

Similar Questions

Explore conceptually related problems

Identify the correct statement regarding entropy

Identify the correct statement regarding entropy

Identify the incorrect statement regarding onion

Identify the correct statement regarding enzymes

Identify the incorrect statement regarding ecotone.

Identify the incorrect statement regarding bark.

TARGET PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS -EVALUATION TEST
  1. The standard enthalpy of formation (Delta(f)H^(@)) at 298K for methan...

    Text Solution

    |

  2. (Delta H - Delta U) for the formation of carbon monoxide (CO) from its...

    Text Solution

    |

  3. Identify the correct statement regarding a spontaneous process.

    Text Solution

    |

  4. Standard entropy of X(2) , Y(2) and XY(3) are 60, 40 and 50JK^(-1)mol...

    Text Solution

    |

  5. The heats of neutralisation of CH3 - COOH , H-COOH,HCN and H2 S are -1...

    Text Solution

    |

  6. The bond dissociation energy of gaseous H(2), Cl(2) and HCl are 104, 5...

    Text Solution

    |

  7. The difference between the heats of reaction at constant pressure and ...

    Text Solution

    |

  8. Given standard enthalpy of formation of CO(-110 "KJ mol"^(-1)) and CO(...

    Text Solution

    |

  9. H(2)(g)+1//2O(2)(g)=H(2)O(l) , Delta H(298 K)=-68.32 Kcal. Heat of vap...

    Text Solution

    |

  10. The heat change at constant volume for the decomposition of silver (I)...

    Text Solution

    |

  11. Which of the following value of DeltaH(f)^(@) represent that the produ...

    Text Solution

    |

  12. The enthalpy change (DeltaH) for the process N2H(4(g)) to 2N((g)) + 4H...

    Text Solution

    |

  13. For the two equations given below: H(2)(g)+1//2O(2)(g)toH(2)O(l)+x(1...

    Text Solution

    |

  14. For an endothermic reaction, where Delta H represents the enthalpy of ...

    Text Solution

    |

  15. The entropy chnge for a non-spontaneous reaction is 140 J/K.mole at 29...

    Text Solution

    |

  16. The entropy change for a certain non-spontaneous reaction is 150 J/K.m...

    Text Solution

    |

  17. C(2)H(4) +CI(2) rarr C(2)H(4)CI(2) DeltaH =- 270.6 kJ mol^(-1)K^(-1)...

    Text Solution

    |

  18. Which of the following does NOT result in increase in the entropy?

    Text Solution

    |

  19. The standard heats of formation for C Cl(4(g)), H2O((g)), CO(2(g)) "an...

    Text Solution

    |

  20. For an isothermal free expansion of an ideal gas,

    Text Solution

    |