Home
Class 11
CHEMISTRY
Which of the following represents the fi...

Which of the following represents the first law of thermodynamics?(1) ΔU=q+w (2)ΔH=q+W, (3) Δ U=H+pΔV (4) ΔU=pΔV

A

q=Delta U-W'

B

Delta H=q+W'

C

Delta U=Delta H+p Delta V'

D

Delta U=p Delta V'

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • THE s- BLOCK ELEMENTS

    V PUBLICATION|Exercise QUESTION BANK|110 Videos

Similar Questions

Explore conceptually related problems

Which one of the following equations correctly represent the first law of thermodynamics for the given process occuring in an ideal gas

If W_1 and W_2 are the weights of two reactants in any reaction, having their equivalent weights E_1 and E_2 respectively, which of the following equations represents the law of equivalence correctly? (a) W_1 E_1 = W_2 E_2 (b) W_1 E_2 = W_2 E_1 ( c ) W_1 W_2 = E_1 E_2

Match the following: 1. (a) Work done by a gas, (A) Heat and work inter changes 2. (b) First law of thermodynamics , (B) 1-(Q_2/Q_1) B) 3. (c) Second law of thermodynamics, (C) PDeltaV B) 4. (d) Efficiency , (D) DeltaQ=DeltaU+DeltaW

For the reversible isothermal process Delta S is given by (1) ΔH / ΔT (2) T /q (3) q × T (4) q rev / T

Which of the following is correct ? (1) ΔH1 of group 12 is Zn>Cd>Hg (2) V205 is amphoteric,exist as VO4^3- in acidic medium (3)K2[PtCl6] is thermodynamically unstable (4)In the d-block , I.E, is lowest for La and highest for Hg

Fusion of ice to form water liquid H_(2) O _((g)) overset( 0^(@)C) to H _(2) O _((l)) is spontaneous because (1) ΔH = - ve (2) ΔH = + ve (3) ΔS = + ve (4) ΔS = - ve

V PUBLICATION-THERMODYNAMICS-QUESTION BANK
  1. The following data are available for the melting of 'KCl . Delta(fus) ...

    Text Solution

    |

  2. For -reaction, N2(g)+3 H2(g) hArr 2 NH3(g) which of the following is...

    Text Solution

    |

  3. Which of the following represents the first law of thermodynamics?(1) ...

    Text Solution

    |

  4. The heat of solution depends upon : nature of solute, nature of sol...

    Text Solution

    |

  5. The heat evolved in the combustion of benzene is given by. the equatio...

    Text Solution

    |

  6. Which of the following equations represents enthalpy of formation of '...

    Text Solution

    |

  7. The enthalpy of neutralisation of 'NaOH' with 'HCl' is '57.1 kJ' while...

    Text Solution

    |

  8. Calorific values of food and fuel are determined by :

    Text Solution

    |

  9. Enthalpy of a reaction is given as:

    Text Solution

    |

  10. The heat of neutralisation of a strong acid by a strong base :

    Text Solution

    |

  11. The heat content of 'Y' is greater than that of 'X', the rection 'X ra...

    Text Solution

    |

  12. The heat change for the reaction : 'C(s)+2 S(s) rarr CS2(l)' is '102....

    Text Solution

    |

  13. The equations representing the combustion of carbon and carbon monoxid...

    Text Solution

    |

  14. Delta H' for the the combustion of a compound is :

    Text Solution

    |

  15. Molar heat capacity of ethanol is 110.4 JK. Its specific heat capacity...

    Text Solution

    |

  16. Enthalpy of formation of ammonia is - '46.0 kJ mol^(-1)'. The enthalp...

    Text Solution

    |

  17. For an ideal gas, 'Cp' and 'Cv' are related as

    Text Solution

    |

  18. The Deltar H^0 for CO2(g), CO(g) and H2 O are -393.5,-110.5and -241.8 ...

    Text Solution

    |

  19. Equal volumes of one molar 'HCl' and 'H2 SO4' are neutralised (separat...

    Text Solution

    |

  20. If the dissociation energies of 'CH4' and 'C2 H6' are 360 and '620 kca...

    Text Solution

    |