Question
_______ of a substance is the temperature and pressure at which three phases (gas, liquid, and solid) of that substance may coexist in thermodynamic equilibrium.
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SSC GD Constable 2024 Question Paper PDF Hindi (24-Feb-2024) (Shift 1)
The correct answer is
Triple-point
On a phase diagram, the triple point is the unique combination of temperature and pressure at which solid, liquid and gas phases of a substance coexist in equilibrium.
For water, the triple point is 273.16 K (0.01 °C) at a pressure of about 611.66 Pa.
Allotropy refers to different structural forms of one element (such as diamond and graphite), and the other two terms do not describe this state.
Hence, Triple-point.
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Important Questions from States of Matter
- Which of the following correctly represents the strength of attraction between particles in the three states of matter?
- Which of the following does NOT occur with an increase in temperature?
- Which of the following is a correct property of solids?
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a. Increasing the surface area will increase the rate of evaporation
b. Increase in wind speed will not allow the cloth to fly
c. To remove wrinkles - The forces of attraction between particles are ______ in solids, ______ in liquids, and ______ in gases.
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