Home
Class 12
CHEMISTRY
A container of 1.0 L capacity filled wit...

A container of 1.0 L capacity filled with 1.0 mole of ideal gas is connected to an evacuated vessel to 9L. Calculate change in entropy. (R=1.987 cal.)

A

0.188 cal `*K^(-1)mol^(-1)`

B

0.4576 `*K^(-1)mol^(-1)`

C

4.576 cal`*K^(-1)mol^(-1)`

D

4.366 cal`*K^(-1)mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
At constant temperature,
`DeltaS=nxx2.303" R log"(V_(2))/(V_(1))`
`DeltaS=1xx2.303xx1.987xx"log"(9)/(1)`
`DeltaS=1xx2.303xx1.987xx0.9582`
`=4.366cal*K^(-1)mol^(-1)`
Promotional Banner

Topper's Solved these Questions

  • 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 Exercise 1|88 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

A cylinder of 5 L capacity, filled with air at NTP is connected with another evacuated cylinder of 30 L capacity. The resultant air pressure in both the cylinders will be

A vessel containing 9 litres of an ideal gas at 760 mm pressure is connected to an evacuated 9 litre vessel. The resultant pressure is

A vessel containing 0.1 m^(3) of air at 76 cm of Hg is connected to an evacuated vessel of capacity 0.09 m^(3) . The resultant air pressure is:

Calculate the amount of work done in each of the following cases : (i) One mole of an ideal gas contained in a bulb of 10 litre capacity at 1 atm is allowed to enter into an evacuated bulb of 100 litre capacity. (ii) One mole of a gas is allowed of 1 atm (1 litre atm = 101.3 J)

A bulb A containing gas at 1.5 bar pressure was connected to an evacuated vessel of 1.0 dm^(3) capacity through a stopcock. The final pressure of the system dropped to 920 mbar at the same temperature. What is the volume of the container A?

Fixed mass of an ideal gas contained in 10.0L sealed rigid vessel at 1atm is heated from -73^(@)C to 27^(@)C . Calculate change in Gibbs enegry if entropy of gas is a function of temperature as S = 2 +10^(-2)T (J K^(-1)). (1atmL = 0.1kJ)

Calculate the amount of work done when one mole of an ideal gas contained in a bulb of 2 L capacity at 1 atm is allowed to enter in evacuted bulb of 10 L capacity and in another case if is allowed to expand from 1 L to 5 L against a pressure of 1 atm.

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CHEMICAL THERMODYNAMICS AND ENERGETIC-Exercise 2
  1. The value of enthalpy change (DeltaH) for the reaction C(2)H(5)OH(l)+3...

    Text Solution

    |

  2. A plot of ln k against (1)/(T) (abscissa) is expected to be a straight...

    Text Solution

    |

  3. A container of 1.0 L capacity filled with 1.0 mole of ideal gas is con...

    Text Solution

    |

  4. In which of the following reactions, the enthalpy is the least?

    Text Solution

    |

  5. For a particular reversible reaction at temperature T,DeltaH and Delta...

    Text Solution

    |

  6. C(s)+O(2)(g)toCO(2)(g),DeltaH=-94 kcal 2CO(g)+O(2)to2CO(2),DeltaH=-1...

    Text Solution

    |

  7. The heat of formations for CO(2)(g),H(2)O(l) and CH(4)(g) are -400 kJ ...

    Text Solution

    |

  8. A hypothetical reaction Ato2B, proceeds through following sequence of ...

    Text Solution

    |

  9. DeltaH for the reaction, C("graphite")+2H(2)(g) to CH(4)(g) at 298...

    Text Solution

    |

  10. The decreasing order of bond dissociation energies of C-C,C-H and H-H ...

    Text Solution

    |

  11. If the end energies of H-H, Br-Br and H-Br are 433, 1992 and 364 kJ mo...

    Text Solution

    |

  12. At 27^(@)C one mole of an ideal gas is compressed isothermally and rev...

    Text Solution

    |

  13. The internal energy change when a system goes from state A to B is 40 ...

    Text Solution

    |

  14. Given, 2Fe+(3)/(2)O(2)toFe(2)O(3),DeltaH=-193.4kJ,Mg+(1)/(2)O(2)to MgO...

    Text Solution

    |

  15. Enthalpy of formation off HF and HCl are -161 kJ and -92 kJ, respectiv...

    Text Solution

    |

  16. For the reaction, 2H(2)+O(2) to 2H(2)O,DeltaH=571. bond energy of H-H=...

    Text Solution

    |

  17. The bond energy of ann O-H bond is 109 kcal/mol. When 1 mole of water ...

    Text Solution

    |

  18. Given the following thermochemical equations, Zn+(1)/(2)O(2) to ZnO+...

    Text Solution

    |

  19. The enthalpy of vaporisation of liquid water using the data H(2)(g)+...

    Text Solution

    |

  20. Energy requried to dissociate 4 g of gaseous hydrogen into free gaseou...

    Text Solution

    |