Home
Class 11
CHEMISTRY
If one mole of an ideal gas (C(p.m.)=(5)...

If one mole of an ideal gas `(C_(p.m.)=(5)/(2)R)` is expanded isothermally at 300K until it’s volume is tripled, then change in entropy of gas is:

A

zero

B

infinity

C

`(5)/(2)R ln 3`

D

`R ln 3`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaS=nRln.(V_(2))/(V_(1))=1R ln.(3V)/(V)=Rln3`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 3 - One Or More Answers Are Correct|1 Videos

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 3 - Match The Column|2 Videos

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 2 (Q.1 To Q.30)|1 Videos

  • STOICHIOMETRY

    NARENDRA AWASTHI|Exercise Level 3 - Subjective Problems|20 Videos

Similar Questions

Explore conceptually related problems

If one mole of an ideal gas C_p = 5/2 R is expanded isothermally at 300 k until it's volume is tripled., if expansion is carried out freely (P_(ext)=0), then DeltaS is :

When two moles of an ideal gas (C_(p.m.)=(5)/(2)R) heated form 300K to 600K at constant pressure, the change in entropy of gas (DeltaS) is:

Two moles of an ideal gas is expanded irreversibly and isothermally at 37^(@)C until its volume is doubled and 3.41 KJ heat is absorbed from surrounding. DeltaS_("total")("system +surrounding") is:

One mole of an ideal gas (C_(v,m)=(5)/(2)R) at 300 K and 5 atm is expanded adiabatically to a final pressure of 2 atm against a constant pressure of 2 atm. Final temperature of the gas is :

2 mole of an ideal gas at 27^(@)C expands isothermally and reversibly from a volume of 4 litre to 40 litre. The work done (in kJ) by the gas is :

A litre of hydrogen at 27^@C and 10^5 Nm^-2 pressure expand isothermally until its volume is doubled and then adiabatically until its volume is redoubled. Find the final pressure of the gas. 1(gamma = 1.4)

When one mole of an ideal gas is compressed to half of its initial volume and simultaneously heated to twice its initial temperature, the change in entropy of gas (Delta S) is:

With what minimum pressure (in kPa), a given volume of an ideal gas (C_(p,m)=7//2R) originally at 400 K and 100 kPa pressure can be compressed irreversibly adiabatically in order to raise its temperature to 600 K :

1 mole of an ideal gas A(C_(v.m)=3R) and 2 mole of an ideal gas B are ((C_(v,m)=(3)/(2)R) taken in a container and expanded reversible and adiabatically from 1 litre of 4 letre starting from initial temperature of 320 K. DeltaE or DeltaU for the process is :

When two moles of ideal gas (C_v = 3/2R) heated from 300 K to 600 K at constant volume, calculate DeltaS_(gas) :

NARENDRA AWASTHI-THERMODYNAMICS-Exercise
  1. Which of the following expression is known as Clausius inequality ?

    Text Solution

    |

  2. When two moles of ideal gas (Cv = 3/2R) heated from 300 K to 600 K at ...

    Text Solution

    |

  3. If one mole of an ideal gas (C(p.m.)=(5)/(2)R) is expanded isothermall...

    Text Solution

    |

  4. If one mole of an ideal gas Cp = 5/2 R is expanded isothermally at 300...

    Text Solution

    |

  5. When one mole of an ideal gas is compressed to half of its initial vol...

    Text Solution

    |

  6. What is the change in entropy when 2.5 mole of water is heated from 27...

    Text Solution

    |

  7. Calculate standard entropy change in the reaction Fe(2)O(3)(s)+3H(2)...

    Text Solution

    |

  8. Calculate the entropy change (J//mol K) of the given reaction. The mol...

    Text Solution

    |

  9. Given Delta(r)S^(@)=-266 and the listed [S(m)^(@)value] Calculate S^(...

    Text Solution

    |

  10. The entropy change for a phase transformation is :

    Text Solution

    |

  11. What is the melting point of benzene if DeltaH("fusion")= 9.95kJ//mol ...

    Text Solution

    |

  12. DeltaS for freezing of 10 g of H(2)O(l) (enthalpy of fusion is 80 cal/...

    Text Solution

    |

  13. Chloroform has DeltaH("vaporization")=29.2 kJ//"mol" and boils at 61.2...

    Text Solution

    |

  14. The entropy if vaporisation of benzene is 85JK^(-1) mol^(-1). When 117...

    Text Solution

    |

  15. Identify the correct statement regarding entropy

    Text Solution

    |

  16. Calculate DeltaS for following process : underset("at" 100K)(X(s)) ...

    Text Solution

    |

  17. For a perfectly crystalline solid C(p.m.)=aT^(3), where ais constant. ...

    Text Solution

    |

  18. Consider the following spontaneous reaction 3X(2)(g)rarr2X(3)(g). What...

    Text Solution

    |

  19. For the reaction 2H(g)rarr H(2)(g), the sign of DeltaH and DeltaS resp...

    Text Solution

    |

  20. Consider the following reaction. C(6)H(6)(l)+(15)/(2)O(2)(g)rarr6CO(...

    Text Solution

    |