Home
Class 12
CHEMISTRY
Consider the reaction, C(s)+O(2)(g)toC...

Consider the reaction,
`C(s)+O_(2)(g)toCO_(2)(g)+393.5kJ`, the signs of `DeltaH,DeltaS and DeltaG` respectively are

A

`+,-,-`

B

`-,+,+`

C

`-,-,-`

D

`-,+,-`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaH=-ve" (combustion reaction)"`
`DeltaS=+ve" (spontaneous at all temperature)"`
`DeltaG=-ve" "`(`because` reaction is spontaneous)
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS AND ENERGETIC

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 2|83 Videos

  • CHEMICAL THERMODYNAMICS AND ENERGETIC

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|40 Videos

  • CHEMICAL THERMODYNAMICS AND ENERGETIC

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|40 Videos

  • CHEMICAL KINETICS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|20 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|11 Videos

Similar Questions

Explore conceptually related problems

Consider the reacton C(s) + (1)/(2) O_(2)(g) rarr CO(g) + 200 kJ The signs of Delta S and Delta G respectively are

For the reaction 2H(g)rarr H_(2)(g) , the sign of DeltaH and DeltaS respectively are :

Consider the following spontaneous reaction 3X_(2)(g)rarr2X_(3)(g) . What are the sign of DeltaH , DeltaS and DeltaG for the reaction ?

Consider the following reaction. C_(6)H_(6)(l)+(15)/(2)O_(2)(g)rarr6CO_(2)(g)+3H_(2)O(g) signs of DeltaH, DeltaS and DeltaG for the above reaction will be

For the reaction, Ag_(2)O(s)rarr2Ag(s)+(1)/(2)O_(2)(g),DeltaH,DeltaS and T are 40kJ, 100J and 380K respectively. Hence DeltaG in kJ is :

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CHEMICAL THERMODYNAMICS AND ENERGETIC-Exercise 1
  1. The second law of thermodynamics says that in a cyclic process

    Text Solution

    |

  2. Which of the following pairs of a chemical reaction is certain to resu...

    Text Solution

    |

  3. One mole of a perfect gas expands isothermally to ten times of its ori...

    Text Solution

    |

  4. Which of the following does not have zero entropy even at absolute zer...

    Text Solution

    |

  5. In which case, a spontaneous reaction is possible at any temperature

    Text Solution

    |

  6. 2 moles of ann ideal gas at 27^(@)C are expanded reversibly from 2L to...

    Text Solution

    |

  7. At 27^(@)C, latent heat of fusion of a compound is 2930 J/mol. Entropy...

    Text Solution

    |

  8. In evaporation of water, DeltaH and DeltaS are

    Text Solution

    |

  9. Which one of the following is correct?

    Text Solution

    |

  10. The standard free energy change (DeltaG^(@)) is related to equilibrium...

    Text Solution

    |

  11. Find the value of DeltaG^(@) if the DeltaH^(@)=-29.8 kcal and DeltaS^(...

    Text Solution

    |

  12. If K lt 1,0, what will be the value of DeltaG^(@)?

    Text Solution

    |

  13. Find the equilibrium constant K(p) in log K(p) if the standard free en...

    Text Solution

    |

  14. The equilibrium constant for a reaction is 10. what will be the value ...

    Text Solution

    |

  15. Which of the following correctly represents the physical significance ...

    Text Solution

    |

  16. At 1 atm pressure, DeltaS=75JK^(-1)mol^(-1),DeltaH=30kJ" "mol^(-1), th...

    Text Solution

    |

  17. Under which of the following sets of conditions, DeltaG is always nega...

    Text Solution

    |

  18. The gibbs free energy for a reversible reaction at equilibrium is

    Text Solution

    |

  19. Consider the reaction, C(s)+O(2)(g)toCO(2)(g)+393.5kJ, the signs of ...

    Text Solution

    |

  20. The free energy for a reaction having DeltaH=31400cal,DeltaS=32" cal "...

    Text Solution

    |