Home
Class 12
CHEMISTRY
At 27^(@)C, for the reaction aA(g)+B(g)t...

At `27^(@)C`, for the reaction `aA(g)+B(g)to2C(g),PDeltaV=-2.5kJ`. The value of 'a' is-

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise VERY SHORT TYPE QUESTIONS|53 Videos

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise FILL IN THE BLANKS|23 Videos

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise ENTRANCE QUESTION BANK|53 Videos

  • CHEMICAL KINETICS

    CHHAYA PUBLICATION|Exercise EXERCISE (NUMERICAL PROBLEMS)|37 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    CHHAYA PUBLICATION|Exercise PRACTICE SET 15|15 Videos

Similar Questions

Explore conceptually related problems

For the reaction A(g)+2B(g)hArr2D(g),DeltaG^(0)=2.kJ*mol^(-1) at 500K. What is the value of K_(p) for the reaction (1)/(2)A(g)+B(g)hArr D(g) at that temperature?

1 mole N_2 and 3 moles of H_2 are taken in a 4 litre flask. If 0.25% of N_2 is converted to NH_3 at equilibrium and the reaction is N_2(g)+3H_2(g)iff2NH_3(g) . Then calculate the value of K_c under that condition. Prove that for the reaction aA_2(g)+bB_2(g)iffcAB(g) the value of the ratio K_p/K_c is 1 when a+b=c.

For the reaction 2A(g) + B(g) to 2D(g), triangleU^@ = -10.5kJ and triangleS^@ = -44.1 JK^-1 Calculate triangleG^@ for the reaction, and predict whetehr the reaction may occur spontaneously. ( R = 8.314 xx 10^-3 kJ K^-1 mol^-1, T = 298 K )

The equilibrium constant for the reaction SO_3(g) iff SO_2(g) +1/2 O_2(g) Is K_c = 4.9 xx10^-2 The value of K_c for the reaction 2SO_2(g) + O_2(g) iff 2SO_3(g) will be

The equilibrium constant (K_c) for the reaction N_2(g)+O_2(g)to2NO(g) at temperature T is 4xx10^(-4) The value of K_c for NO(g)to1/2N_s(g)+1/2O_2(g) at the same temperature is

(a) At 25^(@)C , standard reaction enthalpy for the reaction 2 C(graphite, s) +O_(2)(g)to 2CO(g) is -221.0 kJ. Does this value indicate the standard enthalpy of formation of CO(g) ? If not, then what would be the value of enthalpy of formation of CO(g) at 25^(@)C ? (b) A gas is allowed to expand against zero external pressure. Explain with reason whether the procss is reversible or not.

Calculate standard enthalpy of reaction at 25^(@)C for the reaction: C Cl_(4)(g)+2H_(2)O(g)toCO_(2)(g)+4HC l(g) . Given: The standard heat of formation of C Cl_(4)(g),H_(2)O(g),CO_(2)(g) and HC l(g) are -25.5,-57.8,-94.1 and -22.1kcal*mol^(-1) .

Enthalpy change for the reaction, 4H(g) to 2H_(2)(g) is -869.5kJ . The dissociation energy of H-H bond is-

Enthalpy change for the reaction, 4H(g) overset to 2H_2(g) is -869.5 kJ. The dissociation energy of H-H bond is

Consider the reaction: (i) A_(2)(s)+B_(2)(g)toA_(2)(g)+B_(2)(g),DeltaH=-x kJ (ii) A_(2)(g)+B_(2)(g)to2AB(g),DeltaH=-y kJ What is the value of the change in enthalpy for the following reaction A_(2)(s)+B_(2)(g)to2AB(g) ?

CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-MCQ HOTSPOT (SINGLE CORRENT TYPE)
  1. On combustion C(x)H(y)(l) forms CO(2)(g) and H(2)O(l). At a given temp...

    Text Solution

    |

  2. An ideal gas is compressed isothermaly at 25^(@)C from a volume of 10 ...

    Text Solution

    |

  3. At 27^(@)C, for the reaction aA(g)+B(g)to2C(g),PDeltaV=-2.5kJ. The val...

    Text Solution

    |

  4. When 1 mol of an ideal gas is compressed in a reversible isothermal pr...

    Text Solution

    |

  5. For 0.5 mol of an ideal gas, 15 cal of heat is required to raise its t...

    Text Solution

    |

  6. 1 mol of an ideal gas is enclosed in a cylinder fitted with a friction...

    Text Solution

    |

  7. Given (at 25^(@)C): Ca(s)+(1)/(2)O(2)(g)toCaO(s),DeltaH^(0)=-635.2kJ...

    Text Solution

    |

  8. Given (at 25^(@)C): 2FeSO(4)(s)toFe(2)O(3)(s)+SO(2)(g)+SO(3)(g),Delt...

    Text Solution

    |

  9. At 25^(@)C, the standard heats of formation of H(2)O(g),H(2)O(g),H(g) ...

    Text Solution

    |

  10. Given (at 25^(@)C): C(s, graphite)+(1)/(2)O(2)(g)toCO(g),DeltaH^(0)=...

    Text Solution

    |

  11. At 25^(@)C, for the reaction, H^(+)(aq)+OH^(-)(aq)toH(2)O(l),DeltaH^(0...

    Text Solution

    |

  12. The temperature of a bomb calorimeter changes from 25^(@)C to 32.7^(@)...

    Text Solution

    |

  13. In which of the following processes the change in entropy for the syst...

    Text Solution

    |

  14. A system undergoes the process: A to B to C to D. In this process, the...

    Text Solution

    |

  15. At 27^(@)C,DeltaH=+6kJ for the reaction A+2Bto3C. In the reaction, if ...

    Text Solution

    |

  16. An LPG cylinder contains 14 kg of butane. A family requires 2xx10^(4)k...

    Text Solution

    |

  17. For a reaction involving 1 mol of Zn and 1 mol of H(2)SO(4) in a bomb ...

    Text Solution

    |

  18. Assuming that water vapour is an ideal gas, the internal energy change...

    Text Solution

    |

  19. At 25^(@)C and 1 atm pressure, DeltaH and pressure-volume work for the...

    Text Solution

    |

  20. The initial state of 1 mol of an ideal gas is (P(1),V(1),T(1)). The ga...

    Text Solution

    |