Home
Class 12
CHEMISTRY
Delta S for the reaction , MgCO(3)(s)r...

`Delta S` for the reaction ,
`MgCO_(3)(s)rarr MgO(s)+CO_(2)(g)` will be :

A

0

B

`-ve`

C

`+ve`

D

`oo`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    ALLEN|Exercise EXERCISE -3|108 Videos

  • THERMODYNAMICS

    ALLEN|Exercise EXERCISE -4|18 Videos

  • THERMODYNAMICS

    ALLEN|Exercise EXERCISE -1B|22 Videos

  • TEST PAPERS

    ALLEN|Exercise CHEMISTRY|19 Videos

  • Thermodynamics And Thermo Chemistry

    ALLEN|Exercise All Questions|39 Videos

Similar Questions

Explore conceptually related problems

For the reaction : CaCO_(3) (s) hArr CaO (s) + CO_(2) (g)

Given (i) 2Fe_(2)O_(3)(s) rarr 4Fe(s)+3O_(2)(g) , DeltaG^(@)=+1487.0 kj mol^(-1) (ii) 2CI(g)+O_(2) rarr 2CO_(2)(g) , Delta_(r )G^(@)=-514.4 kj mol^(-1) Free energy change Delta_(r)G^(@) for the reaction 2Fe_(2)O_(3)(s)+6CO(g) rarr 4Fe(s)+6cO_(2)(g) will be :

Value of K_(p) in the reaction MgCO_(3(s))hArr MgO_((s))+CO_(2(g)) is :

Predict the sign of DeltaS for the reaction : CaCO_(3)(s) overset(Delta) to CaO(s) + CO_(2)(g)

For the reaction, CaCO_(3)(s) rarr CaO(s)+CO_(2)(g) , which is the correct representation?

Given the enthalpy of formation of CO_(2)(g) is -94.0 KJ, of CaO(s) is -152 KJ, and the enthalpy of the reaction CaCO_(3)(s) rarr CaO(s)+CO_(2)(g) is 42KJ, the enthalpy of formation of CaCO_(3) (s) is

Equilibrium constant Kp for following reaction: MgCO_(3) (s) hArr MgO(s) + CO_(2) (g)

ALLEN-THERMODYNAMICS -EXERCISE -2
  1. An adiabatic process is one in which :-

    Text Solution

    |

  2. Entropy means

    Text Solution

    |

  3. Delta S for the reaction , MgCO(3)(s)rarr MgO(s)+CO(2)(g) will be :

    Text Solution

    |

  4. Change in entropy is negative for

    Text Solution

    |

  5. In which reaction Delta S is positive :-

    Text Solution

    |

  6. When the egg is hard boiled, there is

    Text Solution

    |

  7. If S^(@) for H(2),Cl(2) and HCl are 0.13, 0.22 and 0.19 KJ K^(-1)mol^(...

    Text Solution

    |

  8. Which has the least entropy :

    Text Solution

    |

  9. When two gases are mixed the entropy :-

    Text Solution

    |

  10. If the enthalpy of vaporisation of water is 186.5 J mol^(-1), then ent...

    Text Solution

    |

  11. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

    Text Solution

    |

  12. If 900J//g of heat is exchanged at boiling point of water then water...

    Text Solution

    |

  13. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

    Text Solution

    |

  14. 5 mol of an ideal gas expand reversibly from a volume of 8 dm^(3) to 8...

    Text Solution

    |

  15. In a spontaneous irreversible process the total entropy of the system ...

    Text Solution

    |

  16. The total entropy change for a system and its surroundings increases, ...

    Text Solution

    |

  17. Calculate the entropy of Br(2)(g) in the reaction H(2)(g)+Br(2)(g)rarr...

    Text Solution

    |

  18. Ammonium chloride when dissolved in water leads to a cooling sensation...

    Text Solution

    |

  19. In which of the following cases entropy decreases?

    Text Solution

    |

  20. Which of the following state function is not zero at standard state :-

    Text Solution

    |