Home
Class 12
CHEMISTRY
For a process, DeltaS(sys)=-15J*K^(-1). ...

For a process, `DeltaS_(sys)=-15J*K^(-1)`. For what value of `DeltaS_("surr")` will the process be non-spontaneous?

Text Solution

Verified by Experts

The condition of non-spontaneity of a process is `DeltaS_(sys)+DeltaS_("surr")lt0`. If `DeltaS_("sys")=-15J*K^(-1)`, then `-15J*K^(-1)+DeltaS_("surr") lt 0, or DeltaS_("surr")lt15J*K^(-1)`. So, the process will be non-spontaneous if `DeltaS_("surr")lt15JJ*K^(-1)`.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise QUESTION ANSWER ZONE FOR BOARD EXAMINATION (SHORT ANSWER TYPE)|35 Videos

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNER|46 Videos

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise WARM UP EXERCISE|119 Videos

  • CHEMICAL KINETICS

    CHHAYA PUBLICATION|Exercise EXERCISE (NUMERICAL PROBLEMS)|37 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    CHHAYA PUBLICATION|Exercise PRACTICE SET 15|15 Videos

Similar Questions

Explore conceptually related problems

For a reversible process DeltaS_(sys)=-20J*K^(-1) . What will be the value of DeltaS_("surr") in this process?

For a spontaneous process DeltaS_("surr")=+10J*K^(-1) . What will be the value of DeltaS_("sys") ?

For process under a set of condition, DeltaS_("sys") lt 0 and DeltaS_("surr") lt0 . Will be process the spontaneous?

In the reaction DeltaS_(sys)=xJ*K^(-1) and DeltaS_("surr")=-yJ*K^(-1) . The reaction will be spontaneous if ______.

A spontaneous process has DeltaS_("sys")=xJ*K^(-1) and DeltaS_("surr") =-yJ*K^(-1) . Compare the values of x and y.

A spontaneous process has DeltaS_("sys")= x J. K^(-1) and Delta S_("surr")= - y J. K^(-1) . Compare the values of x and y.

In an exothermic process DeltaS_(sys) lt0 . In this reaction the sign (+ or -) of DeltaS_("surr") is_____. This reaction will be spontaneous if the numerical value of DeltaS_(sys) is ____ than that of DeltaS_("surr") .

DeltaE = 0 , for which process(s)?

H_(2)O(g)toH_(2)O(l),DeltaH=-40.4kJ*mol^(-1) and DeltaS= - 108.3J*K^(-1)*mol^(-1) . At which temperature the process will be spontaneous at constant 1 atm?

In a process, the value of the change in entropy of the system and its surroundings are x and -y J*K^(-1) . If xgty, then will the process be spontaneous?

CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-QUESTION ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)
  1. If the value of internal energy for 10 g water at a particular tempera...

    Text Solution

    |

  2. In a process A to B to C to D, the heat absorbed by the system in the...

    Text Solution

    |

  3. Why is infinite time required for the completion of an ideal reversibl...

    Text Solution

    |

  4. In a process, if the heat released by the system and work done on the ...

    Text Solution

    |

  5. If the specific heat capacity and molecular mass ofa gas are c(P) and...

    Text Solution

    |

  6. Given an example of a process which is simulataneously isothermal and ...

    Text Solution

    |

  7. At 25^(@)C the standard reaction enthalpy for the reaction AB(3)(g)to(...

    Text Solution

    |

  8. Mention the standard state of sulphur and iodine at 25^(@)C.

    Text Solution

    |

  9. At 25^(@)C, is the standard reaction enthalpy for the reaction 2H(g) +...

    Text Solution

    |

  10. Assuming experimental conditions are the same, compare (DeltaH-DeltaU)...

    Text Solution

    |

  11. What do you mean by the enthalpy of solidification of water at 0^(@)C ...

    Text Solution

    |

  12. Why are spontaneous/natural processes irreversible?

    Text Solution

    |

  13. Give example of two processes where Delta S is zero.

    Text Solution

    |

  14. In which of the following two processes, the change in entropy of the ...

    Text Solution

    |

  15. What will be the change in entropy in an irreversible cyclic process ?

    Text Solution

    |

  16. Are the given statements correct? (1) if heat is absorbed in a chemica...

    Text Solution

    |

  17. Which of the following will have a greater entropy? (1) 1 mol of H(2...

    Text Solution

    |

  18. For a process, DeltaS(sys)=-15J*K^(-1). For what value of DeltaS("surr...

    Text Solution

    |

  19. Which condition does not satisfy the spontaneity criteria ofa reactio...

    Text Solution

    |

  20. Which of the following conditions favours the spontaneity of a reactio...

    Text Solution

    |