Home
Class 11
CHEMISTRY
A piston filled with 0.04mole of an idea...

A piston filled with 0.04mole of an ideal gas expa nds teversibly from 50.0mL to 375mL at a constant temperature of `37.0^@C`. As It does so, it absorbs 208J of heat. The values of q and W for the process will be (R = 8.314J/mol K, In 7.5 = 2.01)

A

`q = +208 J, W = -208 J`

B

q = -208 J, W = -208 J

C

`q = -208 J, W = +208 J`

D

`q = +208 J, W = +208 J`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • STATES OF MATTER (GASES & LIQUIDS)

    PATHFINDER|Exercise QUESTION BANK|280 Videos

Similar Questions

Explore conceptually related problems

A cylinder filled with 0.04 mol of ideal gas expands reversible from 50 mL to 375 mL at a constant temperature of 37.0^(@)C . As it does so, it absorbs 208 J heat, q and w for the process will be (R8.314J*mol^(-1)*K^(-1)) -

10 mol of an ideal gas is taken through an isothermal process in which the volume is compressed from 40 L to 30 L. If the temperature and the pressure of the gas are 0^(@)C and 1 atm respectively. Find the work done in the process. Given: R = 8.31 J cdot mol^(-1) cdot K^(-1) .

The rate of a reaction doubles when its temperature changes from 300K to 310K . Activation energy of such a reaction will be - (R=8.314"J.K"^(-1)"mol"^(-1) and log2=0.310)

The amount of work done when a gas is expanded from a volume of 5 L to 10 L against a constant external pressure of 2 atm is used to heat 15 g of water present at a temperature of 300 K. Calculate the final temperature of water. (Given : molar heat capacity of water = 75.6 J. K^(-1). " mol"^(-1) ).

One mole of an ideal monatomic gas is heated at a constant pressure from 0^(@)C to 100^(@)C . Then the change in the internal energy of the gas is (given R = 8.32 J cdot mol cdot k^(-1))

Pressure of 1 mol of an ideal gas confined in a cylinder fitted with a piston is 50 atm. The gas is expanded reversible when the cylinder is kept in contact to a thermostat at 25^(@)C . During expansion, the pressure of the gas is decreased from 50 to 5 atm. calculate the change in entropy in this process. if the heat absorbed by the gas during expansion be 5705J, then calculate the change in entropy of the surroundings ?

1 mol oxygen is kept in an insulated closed vessel. The vessel is suddenly moved at constant velocity v_(0) causing the temperature of the gas to rise by 1^(@)C . Find out the value of v_(0) . For oxygen , gamma = 1.41 and molar gas constant, R = 8.31 J cdot mol^(-1) cdot K^(-1) .

PATHFINDER-THERMODYNAMICS-QUESTION BANK
  1. The work done when one mole of an idea! gas is compressed form a volum...

    Text Solution

    |

  2. Assuming enthalpy of combustion of hydrogen at 273K is -286 kJ/mol and...

    Text Solution

    |

  3. A piston filled with 0.04mole of an ideal gas expa nds teversibly from...

    Text Solution

    |

  4. If DeltaG for a reaction is negative, you infer that the change is (1...

    Text Solution

    |

  5. In order to decompose 9g water 142.5 kJ heat is required. Hence, the e...

    Text Solution

    |

  6. The enthalpy of combustion of C6H6(l) is -3250 kJ. When 0.39 g of benz...

    Text Solution

    |

  7. The intensive property among these quantities is

    Text Solution

    |

  8. Hess's law states that

    Text Solution

    |

  9. A gas can expand from 100 mL to 250 mL. under a constant pressure of 2...

    Text Solution

    |

  10. For a Process to be spontaneous

    Text Solution

    |

  11. Assertion DeltaH and DeltaE are almost the same for the reaction, N2(g...

    Text Solution

    |

  12. Assertion The increase in internal energy (DeltaE) for the vaporisatio...

    Text Solution

    |

  13. Which of the following has DeltaS^@ greater than zero?

    Text Solution

    |

  14. The heat of reaction for C(10)H8(s) + 12O2,(g) rarr10CO2,(g) + 4H2O(l...

    Text Solution

    |

  15. Which law states entropy of all pure crystalline solids is zero at abs...

    Text Solution

    |

  16. The enthalpies of formation of C2H2(g) and C6H6(g) at 298 K are 230 an...

    Text Solution

    |

  17. For an ideal gas, the Joule Thomson coefficient is

    Text Solution

    |

  18. The relation of DeltaH and DeltaE is represented as

    Text Solution

    |

  19. Calculate the temperature at which DeltaG = -5.2 kJ mol^-1, DeltaH = 1...

    Text Solution

    |

  20. When ice melts into water entropy

    Text Solution

    |