Question

i need all

Question 1 (1 point) ✓ Saved Many heat-sensitive and oxygen-sensitive solids, such as camphor, are purified by warming under vacuum. The solid vaporizes directly, and the vapor crystallizes on a cool surface. What phase changes are involved in the purification of camphor? A) evaporation and freezing B) sublimation and deposition C) sublimation and freezing D) evaporation and deposition

Answer 1

Q1. Sublimation and deposition is the answer as deposition is reverse of sublimation

Q2. Boiling point of Argon is -186 degree celsius. And F₂ has the boiling point approximately equal to -188 degree celsius. Hence answer is F_2.

Q3. An intramolecular force is any force that binds together the atoms making up a molecule or compound, not to be confused with intermolecular forces, which are the forces present between molecules. Hence the answer is interamolecular forces,

Q4. Strong intermolecular forces produce a lower rate of evaporation and a lower vapor pressure. Weak intermolecular forces produce a higher rate of evaporation and a higher vapor pressure. As the temperature increases, the vapor pressure increases.

here temperature is constant so the order is C<D<A<B is the order for intermolecular forces