Home
Class 11
CHEMISTRY
An exothermic reaction X to Y is spontan...

An exothermic reaction `X to Y` is spontaneous in the backward direction.What is the sign of `DeltaS` for the forward direction?

Text Solution

AI Generated Solution

To determine the sign of ΔS (change in entropy) for the forward direction of the reaction \(X \to Y\), we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Reaction**: The reaction \(X \to Y\) is exothermic, meaning it releases heat. In this case, we know that the reaction is spontaneous in the backward direction (i.e., \(Y \to X\)). 2. **Gibbs Free Energy Equation**: Recall the Gibbs free energy equation: \[ ...
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    MODERN PUBLICATION|Exercise NCERT Textbook Exercises|15 Videos
  • THERMODYNAMICS

    MODERN PUBLICATION|Exercise NCERT Exemplar Problems (MCQ (Type - I))|14 Videos
  • THERMODYNAMICS

    MODERN PUBLICATION|Exercise Conceptual Questions - 2|17 Videos
  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise Unit Practice Test|13 Videos

Similar Questions

Explore conceptually related problems

A reaction occurs spontaneously in forward direction if

In general, for exothermic reactions to be spontaneous

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

A redox reaction is spontaneous in a given direction, if

The reaction which proceeds in the forward direction is

MODERN PUBLICATION-THERMODYNAMICS-Conceptual Questions - 3
  1. How does entropy change with (i) increase in temperature, (ii) decreas...

    Text Solution

    |

  2. What is entropy ? Is the entropy of the universe constant?

    Text Solution

    |

  3. What is the value of change in entropy at equilibrium?

    Text Solution

    |

  4. Arrange water vapour, liquid water and ice in the order of increasing ...

    Text Solution

    |

  5. Do you expect DeltaS to be +ve, -ve, or zero for the reaction H(2)(g...

    Text Solution

    |

  6. Place the following systems in order of increasing randomness : (a)1...

    Text Solution

    |

  7. Which of the following processes are accompanied by increase or entrop...

    Text Solution

    |

  8. Predict the sign of entropy change for each of the following changes o...

    Text Solution

    |

  9. Predict the entropy change (positive / negative) in the following: (...

    Text Solution

    |

  10. If standard free energy change for a reaction is found to be zero, wha...

    Text Solution

    |

  11. What is the value of DeltaG at melting point of ice?

    Text Solution

    |

  12. Relate free energy with equillibrium constant. For a reaction both Del...

    Text Solution

    |

  13. Comment on the following statements: (a) An exothermic reaction is a...

    Text Solution

    |

  14. The standard molar entropy of H(2)O(l) is 70 J K^(-1) "mol"^(-1).Wil...

    Text Solution

    |

  15. Which quantity out of Delta(r)G or Delta(r)G^(@) will be zero at equil...

    Text Solution

    |

  16. Why is entropy of substance taken as zero at absolute zero of temperat...

    Text Solution

    |

  17. Predict the signs ofDeltaH and DeltaS for the reaction : 2CI(g) to C...

    Text Solution

    |

  18. An exothermic reaction X to Y is spontaneous in the backward direction...

    Text Solution

    |