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

Identify the correct statement from the following in a chemical reaction

A

The entropy always increases

B

The change in entropy along the suitable change in enthalpy decides the fate of a reaction

C

The enthalpy always decreases

D

Both the enthalpy and the entropy remains constant.

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaG=DeltaH-TDeltaS`
For a reaction to be spontaneous, `DeltaG` should be negative. Therefore, resultant of `DeltaH` and `TDeltaS` decides the fate of a reaction.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise Additional Numerical Problems For Practice|16 Videos

  • CHEMISTRY IN EVERY DAY LIFE

    DINESH PUBLICATION|Exercise Unit test-9|50 Videos

Similar Questions

Explore conceptually related problems

Identify the icorrect statement from the following

Identify the correct statement from thee following.

Identify the correct statement for the following.

Identify the incorrect statement from the following

Identify the incorrect statement from the following

Identify the incorrect statement from the following .

DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
  1. Equal volumes of two monoatomic gases,A,B,at the same temperature and ...

    Text Solution

    |

  2. The incorrect expression among the following is

    Text Solution

    |

  3. Identify the correct statement from the following in a chemical reacti...

    Text Solution

    |

  4. A gasesous system during a thermodynamic process does not undertake an...

    Text Solution

    |

  5. Calculate the work done (in joules) when 0.2 mole of an ideal gas at 3...

    Text Solution

    |

  6. Which of the following is correct

    Text Solution

    |

  7. Choose the reaction with negative DeltaS value

    Text Solution

    |

  8. A chemical reaction is spontancous at 298 K but non spontaneous at 350...

    Text Solution

    |

  9. A gas expands from a volume of 1m^(3) to a volume of 2m^(3) against an...

    Text Solution

    |

  10. The equilibrium constant of a reaction is 0.008 at 298 K. The standard...

    Text Solution

    |

  11. Which of the following statement is true ?

    Text Solution

    |

  12. A piston filled with 0.04 mole of an ideal gas expands reversible from...

    Text Solution

    |

  13. The standard enthalpies fo formation of CO(2) (g), H(2) O (1), and glu...

    Text Solution

    |

  14. 2H(2)(g)+O(2)(g)to2H(2)O(l)+xkJ In the above reaction

    Text Solution

    |

  15. For which of the following reaction, change of enthalpy equals the cha...

    Text Solution

    |

  16. Which of the following expression represent the criterion of spontanei...

    Text Solution

    |

  17. Which relations among the following is/are correct ?

    Text Solution

    |

  18. Which statements among the following is /are incorrect ?

    Text Solution

    |

  19. Second law of thermodynamics points out that

    Text Solution

    |

  20. which among the following is intensive quantity ?

    Text Solution

    |