Home
Class 12
CHEMISTRY
If the equilibrium concentration of the ...

If the equilibrium concentration of the components in a reaction
`A+B hArr C+D` are 3,5,10 and 15 mol `L^(-1)` respectively then what is `Delta G^(@)` for the reactiona at 300K ?

A

`-1.381kcal`

B

`-600cal`

C

`-1140cal`

D

`-300cal`

Text Solution

Verified by Experts

The correct Answer is:
A
`K=(10 xx 15)/(3 xx 5)=10`
Since `Delta G ^(@)=-2.303 RT log K`
`=- 2.303 xx 2 xx 300 xx log 10 =1381.8 cal`
Promotional Banner

Topper's Solved these Questions

  • IONIC EQUILIBRIUM

    DINESH PUBLICATION|Exercise UNIT TEST -2|30 Videos

  • IONIC EQUILIBRIUM

    DINESH PUBLICATION|Exercise BRAIN TEASERS -3|39 Videos

  • HYDROCARBONS

    DINESH PUBLICATION|Exercise All Questions|493 Videos

  • NO IDEA

    DINESH PUBLICATION|Exercise Unit Test -|1 Videos

Similar Questions

Explore conceptually related problems

In the reaction PCI_(5)(g)hArr PCI_(3)(g)+CI_(2)(g) the equilibrium concentrations of PCI_(3) and PCI_(3) are 0.4 and 0.2 mol^(-1) , respectively. If the value of K_(c) is 0.5 , what id the concentration of CI_(2) in moles per litre ?

The equilibrium concentration of x, y and z are 4, 2 and 2 mol L^(-1) , respectively, at equilibrium of the reaction 2x+y hArr z . The value of K_(c) is ……………..

For the reaction A hArr B, DeltaE for the reaction is –33.0 kJ mol^(–1) . Calculate equilibrium constant K_C for the reaction at 300 K

For the reaction equilibrium , N_2O_4(g) hArr 2NO_(2)(g) the concentrations of N_2O_4 and NO_2 at equilibrium are 4.8xx10^(-2) and 1.2xx10^(-2) mol L^(-1) respectively.The value of K_C for the reaction is :

In the following equilibrium reaction, 2A hArr B +C the equilibrium concentrations of A, B and C are 1xx10^(-3) M , 2xx10^(-3) M and 3xx10^(-3) M respectively at 300 K. The value of K_c for this equilibrium at the same temperature is

PCI_(5), PCI_(3) and CI_(2) are in equilibrium at 500 K in a closed container and their concentration are 0.8 gt 10^(-3) " mol" L^(-1) " and " 1.2 xx 10^(-3) "mol" L^(-1) " and " 1.2 xx 10^(-3) "mol" L^(-1) respectively. The value of K_(c) for the reaction PCI_(5) (g) hArr PCI_(3) (g) + CI_(2) (g) will be

DINESH PUBLICATION-IONIC EQUILIBRIUM -BRAIN TEASERS -4
  1. If the dissociation constants of two weak acids HA(1) and HA(2) are K(...

    Text Solution

    |

  2. The pK(a)of an acid having ionisation constant 1 xx 10^(-3) is

    Text Solution

    |

  3. In a mixture of weak acid and its salt, the ratio of concentration of ...

    Text Solution

    |

  4. If the solubility of lithium sodium hexafluorido aluminate, Li(3)Na(3)...

    Text Solution

    |

  5. What will be the hydrogen ion concentration of a solution obtained by ...

    Text Solution

    |

  6. The pH of 10^(-8) M NaOH will be

    Text Solution

    |

  7. The pH of a buffer solution of 0.1 M CH(3)COOH and 0.1 MCH(3)COONa is ...

    Text Solution

    |

  8. If the equilibrium concentration of the components in a reaction A+...

    Text Solution

    |

  9. Which of the following when added to 35 mL of the 1.0 M solution of KO...

    Text Solution

    |

  10. The concentration of acetic acid (K(a)=1.8 xx 10^(-5)) required to giv...

    Text Solution

    |

  11. If 20 cc. of HCl solution is exactly neutralised by 40 cc of 0.05 N Na...

    Text Solution

    |

  12. If, H(2)(g)+Cl(2)(g)rarr 2HCl(g) , Delta H^(@)=-44 Kcal 2Na(s)+2HCl...

    Text Solution

    |

  13. For the reaction C(6)H(12)(l)+9O(2)(g) rarr 6H(2)O(L)+6CO(2)(g) Delt...

    Text Solution

    |

  14. Which causes a largest change in pH on addition to 20ml 0.1 M acetic a...

    Text Solution

    |

  15. The equation C (graphite) +O(2)(g) CO(2)(g) Delta H=-395.5kJ can...

    Text Solution

    |

  16. pH of 10^(-9) M HCl is

    Text Solution

    |

  17. The pH of gastric juice in our stomach is

    Text Solution

    |

  18. The equation for Van't Hoff Reaction isotherm is

    Text Solution

    |

  19. The correct decreasing order of calorific values is

    Text Solution

    |

  20. Entrolpy change in isothermal expansion work of one mole of an ideal g...

    Text Solution

    |