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No substance can exist in the liquid phase in stable equilibrium
- a)at temperature below the triple point temperature
- b)at pressure below the triple point pressure
- c)at pressure above the triple point pressure
- d)at temperature above the triple point temperature
Correct answer is option 'B'. Can you explain this answer?
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No substance can exist in the liquid phase in stable equilibriuma)at t...
Triple Point
The triple point is the temperature and pressure at which the three phases (solid, liquid, and gas) of a substance coexist in thermodynamic equilibrium. It is a unique point for each substance and is used as a reference point in thermodynamics.
Stable Equilibrium
A substance is said to be in stable equilibrium when its free energy is at a minimum. In other words, the substance is in its most stable state and any change in its conditions will result in an increase in its free energy.
No Substance can Exist in Liquid Phase in Stable Equilibrium
According to the given statement, no substance can exist in the liquid phase in stable equilibrium at pressure below the triple point pressure. This is because:
- At pressures below the triple point pressure, the substance can exist in the solid or gas phase, but not in the liquid phase, in stable equilibrium.
- If the substance is in the solid phase, increasing the pressure will cause it to melt and enter the liquid phase.
- If the substance is in the gas phase, decreasing the pressure will cause it to condense and enter the liquid phase.
- However, if the substance is in the liquid phase and the pressure is decreased below the triple point pressure, it will not be in stable equilibrium. The substance will evaporate and enter the gas phase, resulting in an increase in its free energy.
Conclusion
In conclusion, no substance can exist in the liquid phase in stable equilibrium at pressure below the triple point pressure. This is because the substance will either be in the solid or gas phase, and any change in conditions will cause it to enter the liquid phase.
The triple point is the temperature and pressure at which the three phases (solid, liquid, and gas) of a substance coexist in thermodynamic equilibrium. It is a unique point for each substance and is used as a reference point in thermodynamics.
Stable Equilibrium
A substance is said to be in stable equilibrium when its free energy is at a minimum. In other words, the substance is in its most stable state and any change in its conditions will result in an increase in its free energy.
No Substance can Exist in Liquid Phase in Stable Equilibrium
According to the given statement, no substance can exist in the liquid phase in stable equilibrium at pressure below the triple point pressure. This is because:
- At pressures below the triple point pressure, the substance can exist in the solid or gas phase, but not in the liquid phase, in stable equilibrium.
- If the substance is in the solid phase, increasing the pressure will cause it to melt and enter the liquid phase.
- If the substance is in the gas phase, decreasing the pressure will cause it to condense and enter the liquid phase.
- However, if the substance is in the liquid phase and the pressure is decreased below the triple point pressure, it will not be in stable equilibrium. The substance will evaporate and enter the gas phase, resulting in an increase in its free energy.
Conclusion
In conclusion, no substance can exist in the liquid phase in stable equilibrium at pressure below the triple point pressure. This is because the substance will either be in the solid or gas phase, and any change in conditions will cause it to enter the liquid phase.
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No substance can exist in the liquid phase in stable equilibriuma)at t...
At pressure below the triple point pressure the solid directly converts into gaseous state. this process is called sublimation
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No substance can exist in the liquid phase in stable equilibriuma)at temperature below the triple point temperatureb)at pressure below the triple point pressurec)at pressure above the triple point pressured)at temperature above the triple point temperatureCorrect answer is option 'B'. Can you explain this answer?
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