Home
Class 11
CHEMISTRY
For a reaction 2A(g)+2B(g) rarr 2C(g)+D(...

For a reaction `2A(g)+2B(g) rarr 2C(g)+D(g)`. If heat of reaction at constant pressure is `-28` K.cal. The heat of reaction at constant volume at `27^(@)C` is

A

`-27.4` K. cal

B

`27.4` K. cal

C

`28.4` K. cal

D

`28` K. cal

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaH=DeltaU+Delta nRT`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARAYNA|Exercise Level -III|64 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Level-IV|27 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Level -I (C.W)|62 Videos

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EXERCISE - IV EXEMPLAR PROBLEMS|24 Videos

Similar Questions

Explore conceptually related problems

In a reaction, CO_(2(g)) +H_(2(g)) rarr CO_((g)) +H_(2)O_((g)), Delta H=+2.8 kJ at a constant pressure. The heat ofreactton at constant volume is

The ratio K_(p) to K_( c) of a reaction is 24.63 L atm mol^(-1) at 27^(@) C. If heat of reaction at constant pressure is 98.8 kcal, what is the heat of reaction (in kcal) at constant volume?

For combustion of 1 mole of benzene at 25^(@)C , the heat of reaction at constant pressure is -780.9" kcal." What will be the heat of reaction at constant volume ? C_(6)H_(6(l))+7(1)/(2)O_(2(g))rarr 6CO_(2(g))+3H_(2)O_((l))

Heat of reaction for, CO(g)+1//2O_(2)(g)rarr CO_(2)(g) at constant V is -67.71 K cal at 17^(@)C . The heat of reaction at constant P at 17^(@)C is :-

For the reaction, A (g) + 2B(g) rarr 2C(g) + 3D(g) the change of enthalpy at 27^@C is 19 kcal. The value of Delta E is:

Heat of reaction A(s) + B(g) rarr 2C(g) is 40 kJ at 300 K and constant volume. Hence, heat of reaction at constant pressure and at 300 K is,

Heat of reaction for C_(6)H_(12)O_(6(s))+6O_(2(g)) rarr 6CO_(2(g))+6H_(2)O_(v) at constant pressure is -651 kcal at 17^(@)C . Calculate the heat of reaction at constant volume at 17^(@)C .

NARAYNA-THERMODYNAMICS-Level -II (C.W)
  1. The ratio gamma for inert gases is

    Text Solution

    |

  2. The molar heat capacity of water is

    Text Solution

    |

  3. For a reaction 2A(g)+2B(g) rarr 2C(g)+D(g). If heat of reaction at con...

    Text Solution

    |

  4. A sample of CH(4) of 0.08 g was subjected to combustion at 27^(@)C in ...

    Text Solution

    |

  5. 100 ml of water at 20^(@)C and 100 ml of water at 40^(@)C are mixed in...

    Text Solution

    |

  6. Heat of combustion of benzoic acid (C(6)H(5)COOH) at constant volume a...

    Text Solution

    |

  7. Which of the following is an exothermic reaction?

    Text Solution

    |

  8. Which of the following is an exothermic reaction?

    Text Solution

    |

  9. Determine the heat of transformaiton of C(("dimamond"))rarrC(("graphi...

    Text Solution

    |

  10. H(2)(g)+I(2) (s) rarr 2HI (g), DeltaH=51.9 KJ/mole H(2)(g)+I(2)(g) r...

    Text Solution

    |

  11. The heat of combustion of yellow phoshphorus and red phosphorus are -9...

    Text Solution

    |

  12. The heats of combustion for C, H(2) and CH(4) are -349, -241.8 and -90...

    Text Solution

    |

  13. From the thermochemical reactions, C(graphite)+1//2O(2)rarr CO , Delta...

    Text Solution

    |

  14. The heats of xombustion of carbon, hydrogen and ethane are 94, 68.3 an...

    Text Solution

    |

  15. If the heats of formation of C(2)H(2) and C(6)H(6) are 230 kJ mol^(-1)...

    Text Solution

    |

  16. At 298 K, the heats of formation fo C Cl(4) (g), H(2)O(g), CO(2)(g) an...

    Text Solution

    |

  17. The stadard heats of formation of NO(2)(g) and N(2)O(4) (g) are 33.5 a...

    Text Solution

    |

  18. The enthalpies of formation of CO(2(g)), H(2)O((l)) and C(2)H(4(g)) ar...

    Text Solution

    |

  19. If H(2)S+3/2 O(2) rarr H(2)O+SO(2), DeltaH=-136.7 Kcal H(2)+1/2 O(...

    Text Solution

    |

  20. A+3/2 O(2) rarr AO(3) = 3x KJ AO(2)+1/2 O(2) rarr AO(3) = 2y kJ Th...

    Text Solution

    |