Home
Class 11
CHEMISTRY
When the work is done by the system, w i...

When the work is done by the system, w is taken as ......

Text Solution

AI Generated Solution

To solve the question, we need to understand the convention used in thermodynamics regarding work done by or on a system. ### Step-by-Step Solution: 1. **Understanding Work in Thermodynamics**: In thermodynamics, work can be done by a system or on a system. This is a crucial concept as it affects the energy balance of the system. 2. **IUPAC Convention**: According to the International Union of Pure and Applied Chemistry (IUPAC) conventions: - When work is done **by** the system (for example, when a gas expands and pushes against the surroundings), it is considered as energy leaving the system. ...
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    ICSE|Exercise ASSERTION -REASON TYPE QUESTIONS|9 Videos

  • CHEMICAL THERMODYNAMICS

    ICSE|Exercise NUMBERICAL PROBLEMS|18 Videos

  • CHEMICAL THERMODYNAMICS

    ICSE|Exercise TRUE OR FALSE. TYPE QUESTIONS|24 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    ICSE|Exercise NCERT TEXT-BOOK EXERCISES ( WITH HINTS AND SOLUTIONS)|47 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    ICSE|Exercise NCERT TEXT-BOOK. EXERCISE (With Hints and Solutions)|63 Videos

Similar Questions

Explore conceptually related problems

if work is done by the system then W is

What is the value of DeltaE when the work done by the system is equal to the heat absorbed by the system?

We consider a thermodynamic system. If DeltaU represents the increase in its internal energy and W the work done by the system, which of the following statements is true?

If W is the amount of work done by the system and q is the amount of heat supplied to the system, identify the type of the system

Let (Delta W_a) and (Delta W_b) be the work done by the system A and B respectively in the previous question.

In a cyclic process, work done by the system is

When a system is taken from state a to state b, in figure along the path a to c to b , 60J of heat flow into the system, and 30 J of work is done : (i) How much heat flows into the system along the path a to d to b if the work is 10J . (ii) When the system is returned from b to along the curved path, the work done by the system is -20J . Does the system absorb or liberate heat, and how much ? (iii) If , U_(a) = 0 and U_(d)= 22J , find the heat absorbed in the process a to d and d to b .

Pick out the correct option which represents for the work done by the system on the surroundings

In given figure, let DeltaU_(1) and DeltaU_(2) be change in internal energy in process ABC and CDA respectively. DeltaQ and W be the net heta given and net work done by the system in the process ABC +CDA , then

When a system is taken from A to C through path ABC, 10 J of heat flows to the system and 4 J of work is done by the system. How much heat flows into the system in path ADC, if the work done by the system is 3 J ?

ICSE-CHEMICAL THERMODYNAMICS -FILL IN THE BLANKS. TYPE QUESTIONS
  1. Thermodynamics mainly deals with

    Text Solution

    |

  2. A closed system is that which

    Text Solution

    |

  3. A system is said to be in ...... equilibrium when the system and the s...

    Text Solution

    |

  4. When the work is done by the system, w is taken as ......

    Text Solution

    |

  5. Is the entropy of the universe constant ?

    Text Solution

    |

  6. Define isolated system.

    Text Solution

    |

  7. The sum of ...... energy and ...... energy of a system is called entha...

    Text Solution

    |

  8. For the process occurring at constant ....... DeltaH = DeltaU.

    Text Solution

    |

  9. A spontaneous process is also called a ...... process.

    Text Solution

    |

  10. Dissolution of sugar in water is accompanied by ...... of entropy of t...

    Text Solution

    |

  11. A spontaneous process is an ...... process and occurs in ...... direct...

    Text Solution

    |

  12. The force responsible for the spontaneity of a reaction is called .......

    Text Solution

    |

  13. The total entropy change (DeltaS("total")) for the system and surround...

    Text Solution

    |

  14. If DeltaS("total") is positive the process is ..... and occurs in the...

    Text Solution

    |

  15. Whenever a spontaneous process takes place, it is accompanied by an in...

    Text Solution

    |

  16. When DeltaG = 0, the process is …….

    Text Solution

    |

  17. When DeltaH is ngative nad T DeltaS is positive, the process is ……..at...

    Text Solution

    |

  18. The enthalpy change for a reaction does not depend upon the

    Text Solution

    |

  19. The greater the free energy change, the greater is the amount of ........

    Text Solution

    |

  20. At absolute zero, the entropy of a pure crystal is zero. This is

    Text Solution

    |