Home
Class 12
CHEMISTRY
Select the correct formula about the cha...

Select the correct formula about the change in enthalpy.

A

`Delta_(r)H`=(Sum of enthalpies of reactants)-(Sum of enthalpies of products)

B

`Delta_(r)H=`(Sum of enthalpies of products)-(Sum of enthalpies of reactants)

C

`Delta_(r)H=`(Difference of enthalpies of products)-(Difference of enthalpies of reactants)

D

`Delta_(r)H=`(Difference of enthalpies of reactants)-(Difference of enthalpies of products)

Text Solution

Verified by Experts

The correct Answer is:
B

The enthalpy change of a chemical reaction is given by the symbol `Delta_(r)H`.
`Delta_(r)H=`sum of enthalpies of product-sum of enthalpies of reactants.
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

Select the correct option about cockroach

Select the correct statement about the RNAi method.

Select the correct statement about benzene:

Select the correct statement about alkanes.

Which is correct about the change given below?

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CHEMICAL THERMODYNAMICS AND ENERGETIC-Exercise 1
  1. Change in internal energy when 4 kJ of work is done on the system and ...

    Text Solution

    |

  2. A system absorb 600 J of heat and work equivalent to 300 J on its surr...

    Text Solution

    |

  3. Select the correct formula about the change in enthalpy.

    Text Solution

    |

  4. Select the correct formula for Delta(sol)H^(-).

    Text Solution

    |

  5. Which of the following statement is correct regarding melting of ice?

    Text Solution

    |

  6. Which of the following is not an endothermic reaction?

    Text Solution

    |

  7. Given : S((s))+(3)/(2)O(2(g))rarrSO(3(g)+2X Kcal SO(2(s))+(1)/(2)O(2...

    Text Solution

    |

  8. In the given reaction, Na(s)toNa(g) The enthalpy of atomisation is s...

    Text Solution

    |

  9. In the following process, H(2)(g) to 2H(g), " "Delta(H-H)H^(ө)=43...

    Text Solution

    |

  10. Enthalpy of solution of NaOH (solid) in water is -41.6 kJ mol^(-1). Wh...

    Text Solution

    |

  11. DeltaU^(@) for combustion of methane is -X kJ mol^(-1). The value of D...

    Text Solution

    |

  12. Two moles of an ideal gas is expanded isothermally and reversibly from...

    Text Solution

    |

  13. For the given reaction, CH(4)(g)+2O(2)(g)toCO(2)(g)+2H(2)O(l) Sele...

    Text Solution

    |

  14. What is Deltan(g) for the combusion of 1 mole of benzene, when both re...

    Text Solution

    |

  15. Enthalpy change for the reaction, 4H(g)to2H(2)(g) is -869.5 kJ. Th...

    Text Solution

    |

  16. The heat energy required to ionise the following molecules is given as...

    Text Solution

    |

  17. Given that DeltaH(f)(H)=218kJ//mol, express the H-H bond energy in kca...

    Text Solution

    |

  18. Calculate the difference between DeltaE and DeltaH for the following r...

    Text Solution

    |

  19. The sublimation energy of l(2)(s) is 57.3 kJ/mol and the enthalpy of f...

    Text Solution

    |

  20. The enthalpy of reaction, H(2)(g)+(1)/(2)O(2)(g)to H(2)O(g) is Delta...

    Text Solution

    |