Home
Class 12
CHEMISTRY
In a reversible process, if changes in e...

In a reversible process, if changes in entropy of the system and its surroundings are `DeltaS_(1) & DeltaS_(2)` respectively, then-

A

`DeltaS_(1)+DeltaS_(2) gt0`

B

`DeltaS_(1)+DeltaS_(2) lt0`

C

`DeltaS_(1)+DeltaS_(2)=0`

D

`DeltaS_(1)+DeltaS_(2)ge0`.

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise VERY SHORT TYPE QUESTIONS|53 Videos
  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise FILL IN THE BLANKS|23 Videos
  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise ENTRANCE QUESTION BANK|53 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

In a reversible adiabatic change the entropy change is

The initial state of 1 mol of an ideal gas is (P_(1),V_(1),T_(1)) . The gas is expanded by a reversible isothermal process and also by a reversible adiabatic process separately. If final volume of the gas is same in both the processes, and changes in internal energy in the isothermal and adiabatic processes are DeltaU_(1) and DeltaU_(2) respectively, then-

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?

In which of the following processes change in entropy for the system is zero-

In which of the following processes the change in entropy for the system is zero-

At a particular temperature and pressure, when will the changes in entropy of the system (DeltaS_(sys)) and the surroundings (DeltaS_("surr")) be equal but the opposite in sign in a chemical reaction? In this condition, what will the value of DeltaG be? Will the reaction be spontaneous in this condition?

A system can go from state A to state B in two different processes 1 and 2. If the change in internal energy in two cases are Delta U_(1) and Delta U_(2) , respectively, then

If the process AtoB occurs reversible, then the change in entropy of the system be, DeltaS_(1) . When the same process occurs irreversible, the change in entropy of the system be DeltaS_(2) . Will the value of DeltaS_(1) be greater than, less than or equal to the value of DeltaS_(2) ?

In reversible adiabatic process DeltaS is

In the cyclic process A overset(I)toBoverset(II)Coverset(III)toA the change in entropy of the system are DeltaS_(1),DeltaS_(2) & DeltaS_(3) . DeltaS_(1)+DeltaS_(2)+DeltaS_(3)= ________.

CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-MCQ HOTSPOT (SINGLE CORRENT TYPE)
  1. Enthalpy of fusion of ice at 0^(@)C and 1 atm is 6.02 kJ*mol^(-1). The...

    Text Solution

    |

  2. At given pressure and a temperature of 300K, DeltaS(sys) and DeltaS("s...

    Text Solution

    |

  3. In a reversible process, if changes in entropy of the system and its s...

    Text Solution

    |

  4. A flask of volume 1L contains 1 mol of an ideal gas. The flask is conn...

    Text Solution

    |

  5. The heats of neutralisation of four acids A, B, C and D are 13.7, 9.4,...

    Text Solution

    |

  6. In a closed insulated container, a liquid is stirred with a paddle to ...

    Text Solution

    |

  7. How many calories are required to increase the temperature of 40g of A...

    Text Solution

    |

  8. Water is supercooled to -4^(@)C. The enthalpy (H) of the supercooled w...

    Text Solution

    |

  9. Standard entropy of X(2),Y(2) and XY(3) are 60, 40 and 50J*K^(-1)*mol^...

    Text Solution

    |

  10. Two moles of a gas of volume 50L and pressure 1 atm are compressed adi...

    Text Solution

    |

  11. Given (at 25^(@)C): C (s, graphite)toC(g),DeltaH^(0)=+713.64kJmol^(-...

    Text Solution

    |

  12. DeltaH value for the given reactions at 25^(@)C are- C(3)H(8)(g)to3C...

    Text Solution

    |

  13. At 0^(@)C and normal pressure, the enthalpy of fusion of ice is 334.7J...

    Text Solution

    |

  14. Given: NH(3)(g)+3Cl(2)(g)toNCl(3) (g)+3HCl(g),-DeltaH(1) N(2)(g)+3H(...

    Text Solution

    |

  15. When 1 g of graphite is completely burnt in a bomb calorimeter, the te...

    Text Solution

    |

  16. The volume of a gas is reduced to half from its original volume. The s...

    Text Solution

    |

  17. For which molar specific heat is temperature independent-

    Text Solution

    |

  18. Which of the following quantities are stable functiond-

    Text Solution

    |

  19. Which of the following comments are true-

    Text Solution

    |

  20. When 3g of ethane gas is brunt at 25^(@)C, 156 kJ of heat is liberated...

    Text Solution

    |