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The second law of thermodynamics is a fu...

The second law of thermodynamics is a fundamental law of science. In this problem, we consider the thermodynamics of an ideal gas, phase transition, and chemical equilibrium.
Three moles of `CO_(2)` gas expands isothermally (in thermal contact with the surroundings, temperature `= 15.0^(@)C`) against a fixed external pressure of `1.00 bar`. The initial and final volumes of the gas are `10.0 L` and `30.0L`, respectively.
Select the correct order of the entropy change.

A

`DeltaS_("syst") gt 0, DeltaS_("surr") =0`

B

`DeltaS_("sys") lt 0, DeltaS_("surr") gt 0`

C

`DeltaS_("sys") gt 0, DeltaS_("surr") lt 0`

D

`DeltaS_("sys") =0, DeltaS_("surr") =0`

Text Solution

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The correct Answer is:
C
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The second law of thermodynamics is a fundamental law of science. In this problem, we consider the thermodynamics of an ideal gas, phase transition, and chemical equilibrium. Three moles of CO_(2) gas expands isothermally (in thermal contact with the surroundings, temperature = 15.0^(@)C ) against a fixed external pressure of 1.00 bar. The initial and final volumes of the gas are 10.0 L and 30.0L , respectively. Delta_(surr)S is

The second law of thermodynamics is a fundamental law of science. In this problem, we consider the thermodynamics of an ideal gas, phase transition, and chemical equilibrium. Three moles of CO_(2) gas expands isothermally (in thermal contact with the surroundings, temperature = 15.0^(@)C ) against a fixed external pressure of 1.00 bar . The initial and final volumes of the gas are 10.0 L and 30.0L , respectively. Assuming CO_(2) to be an ideal gas, Delta_(sys)S is

Knowledge Check

  • Following problem is based on thermodynamic law. Answer the questions given at the end of it. The second law of thermodynamics is a fundamental law of science. In this problem we consider the thermodynamics of an ideal gas, phase transition and chemical equilibrium. Three moles of CO_(2) gas expands isothermally (in thermal contact with the surroundings, temperature =15^(@) C) against a fixed external pressure of 1.00 bar. The initial and final volumes of the gas are 10.0 L and 30.0 L, respectively. Change in entropy of the universe is

    A
    `34.34 JK^(-1)`
    B
    `-34.34 JK^(-1)`
    C
    `20.46 JK^(-1)`
    D
    `-20.46 JK^(-1)`

  • Following problem is based on thermodynamic law. Answer the questions given at the end of it. The second law of thermodynamics is a fundamental law of science. In this problem we consider the thermodynamics of an ideal gas, phase transition and chemical equilibrium. Three moles of CO_(2) gas expands isothermally (in thermal contact with the surroundings, temperature =15^(@) C) against a fixed external pressure of 1.00 bar. The initial and final volumes of the gas are 10.0 L and 30.0 L, respectively. Deltas_("surroundings") is

    A
    `27.4 JK^(-1)`
    B
    `+6.94 JK^(-1)`
    C
    `0.00 JK^(-1)`
    D
    `-6.94 JK^(-1)`

  • Following problem is based on thermodynamic law. Answer the questions given at the end of it. The second law of thermodynamics is a fundamental law of science. In this problem we consider the thermodynamics of an ideal gas, phase transition and chemical equilibrium. Three moles of CO_(2) gas expands isothermally (in thermal contact with the surroundings, temperature =15^(@) C) against a fixed external pressure of 1.00 bar. The initial and final volumes of the gas are 10.0 L and 30.0 L, respectively. Assuming CO_(2) to be an ideal gas DeltaS_(sys) is

    A
    `27.4 JK^(-1)`
    B
    `9.1 JK^(-1)`
    C
    `-27.4 JK^(-1)`
    D
    `-9.1 JK^(-1)`

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