Home
Class 12
CHEMISTRY
Calculate the temperature at which Delta...

Calculate the temperature at which `DeltaG=-5.2 kJ``mol^-1`,DeltaH=145.6kJ``mol^-1` and `DeltaS=216 JK^-1` `mol^-1` for a chemical reaction

A

`698^(@)C`

B

`425^(@)C`

C

`650 K`

D

`650^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B

`-5.2 =145.6 -T ((216)/(1000))" or "T=698 K =425^(@)C`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (Third Law of Thermodynamics)|6 Videos
  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (HIGHER LEVEL)|112 Videos
  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (Spontaneous Process, Entropy and Second Law of Thermodynamics)|16 Videos
  • CHEMICAL KINETICS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|50 Videos
  • CHEMISTRIY IN EVERYDAY LIFE

    MARVEL PUBLICATION|Exercise TEST YOUR GRAPS|24 Videos

Similar Questions

Explore conceptually related problems

The temperature in K at which DeltaG=0 for a given reaction with DeltaH=-20.5 kJ mol^(-1) and DeltaS=-50.0 JK^(-1) mol^(-1) is

For the reaction at 298 K 2A + B to C DeltaH = 40 kJ "mol"^(-1) and DeltaS = 0.2 kJ K^(-1) "mol"^(-1) . At what temperature will the reaction beccomes sponatneous considering DeltaH and DeltaS to be constant over the temperature range.

For the reaction at 300 K, 2A + B to C Delta H = 450 kJ mol^(-1) and DeltaS = 0.2 kJ K^(-1) mol^(-1) .At what temperature will the reaction become spontaneous considering DeltaH and DeltaS to be constant over the temperature range?

For the reaction at 298 K 2A+B rarr C DeltaH=400 kJ mol^(-1) and DeltaS=0.2 kJ K^(-1) mol^(-1) At what temperature will the reaction becomes spontaneous considering DeltaH and DeltaS to be contant over the temperature range.

Following are the values of E_(a) and DeltaH for three reactions carried out at the same temperature : I :E_(a)=20kJ mol^(-1),DeltaH=-60kJmol^(-1) II :E_(a)=10kJ mol^(-1),DeltaH=-20kJ mol^(-1) III : E_(a)=40 kJ mol^(-1),DeltaH=+15kJ mol^(-1) If all the three reaction have same frequency factor then fastest and slowest reaction are :

MARVEL PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS-MULTIPLE CHOICE QUESTIONS (Gibbs Free Energy)
  1. Two moles of ideal gas at 27^(@)C temperature is expanded reversibly f...

    Text Solution

    |

  2. What is the free energy change, 'DeltaG' When 1.0 mole of water at 100...

    Text Solution

    |

  3. Calculate the temperature at which DeltaG=-5.2 kJmol^-1,DeltaH=145.6kJ...

    Text Solution

    |

  4. Calculate the free energy change for the following reaction at 300 K. ...

    Text Solution

    |

  5. One mole of a perfect gas expands isothermally to ten times its origin...

    Text Solution

    |

  6. Which of the following reaction is said to be enthalpy driven?

    Text Solution

    |

  7. For the Ararr B process Given : Delta H =+ve, Delta S =-ve, T Delta ...

    Text Solution

    |

  8. Most disordered system is

    Text Solution

    |

  9. A (G(1)" free energy") rarr B(G(2)" free energy") The above reaction...

    Text Solution

    |

  10. The possibility of a reaction for its completion increases if

    Text Solution

    |

  11. For a reaction to have highest spontaneity, it should be

    Text Solution

    |

  12. 1 mole of CO(2) is available in the gaseous state (at NTP) 1 mole of C...

    Text Solution

    |

  13. Standard state of a gaseous substance indicates that the substance is ...

    Text Solution

    |

  14. One mole of ice is converted into water at 273K. The entropies of H2O(...

    Text Solution

    |

  15. Which one of the following conditions corresponds to a transformation ...

    Text Solution

    |

  16. At 373 K, the heat of transition for H(2)O(l) rarr H(2)O((g))" is "Del...

    Text Solution

    |

  17. For reaction 2Cl((s)) to Cl(2(s)), the signs of Delta H "and " Delta S...

    Text Solution

    |

  18. For an adiabatic process

    Text Solution

    |

  19. Identify the correct statement for change of Gibbs energy for a system...

    Text Solution

    |

  20. Which of the following process proceeds with the +ve value of Delta S?

    Text Solution

    |