Choose the correct statement/s:a)Heterogeneous system is always Univariantb)Phase is a homogeneous system in itself and mechanically separablec)Sublimation takes place for the substance whose triple point is higher than 1 atm.d)P, Silica, Benzophenone show MonotrophyCorrect answer is option 'A,B,C,D'. Can you explain this answer?

Question

Answer

**Explanation:**

a) Heterogeneous system is always Univariant:
A heterogeneous system consists of multiple phases, whereas a univariant system has only one degree of freedom. In a heterogeneous system, the number of phases and components determine the number of degrees of freedom. If the number of phases is greater than the number of components, the system is univariant. Therefore, the statement is correct.

b) Phase is a homogeneous system in itself and mechanically separable:
A phase is a region of a system that is uniform in composition and properties. It is a homogeneous system because it has a uniform composition throughout. Additionally, phases can be mechanically separated from one another. For example, oil and water are two phases in a heterogeneous system, and they can be separated by simple mechanical means. Therefore, the statement is correct.

c) Sublimation takes place for the substance whose triple point is higher than 1 atm:
Sublimation is the process by which a substance transitions directly from the solid phase to the gas phase without passing through the liquid phase. This process occurs when the vapor pressure of the substance is higher than the surrounding pressure. The triple point is the temperature and pressure at which all three phases (solid, liquid, and gas) coexist in equilibrium. If the triple point is higher than 1 atm, it means that the vapor pressure of the substance at that temperature is higher than 1 atm, allowing sublimation to occur. Therefore, the statement is correct.

d) P, Silica, Benzophenone show Monotrophy:
Monotropy refers to the existence of a single stable phase over a range of temperatures. In the case of P (phosphorus), silica, and benzophenone, they exhibit monotropy. Phosphorus exists as a stable solid phase (white phosphorus) over a range of temperatures, silica exists as a stable solid phase (quartz) over a range of temperatures, and benzophenone exists as a stable solid phase over a range of temperatures. Therefore, the statement is correct.

In conclusion, all the given statements (a, b, c, and d) are correct.

Answer

These all statements are correct but these type of questions should not be preferred here to answer, because it is just like a game playing but this app is only for competitive exams preparation. seriously, plzz stop asking these type of questions because these type of questions are usually unvaluable.

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