There are three sets of sketches below showing the same pure molecular compound at three different temperature the sketches draw an as if a sample of water were under a microscope so powerful that individual atoms could be seen
Melting point of h20:0.0 degree celcius
Boiling point of h2o: 100.0 degree celcius
Unfortunately, there are no sketches provided in the question. However, I can describe what the sketches might depict at different temperatures.
Sketch 1 (Below Melting point):
At temperatures below the melting point of water (0.0 degrees Celsius), the sketch would show water molecules arranged in a solid state. Each water molecule consists of two hydrogen atoms bonded to one oxygen atom. The molecules would form a regular lattice structure, with hydrogen bonds holding them together in a fixed pattern.
Sketch 2 (Melting point to Boiling point):
Between the melting point and boiling point (0.0 to 100.0 degrees Celsius), the sketch would show the water molecules transitioning from a solid to a liquid state. The molecules start to break free from their fixed positions in the lattice and gain more kinetic energy. The hydrogen bonds weaken, allowing the molecules to move more freely, although they still remain close together.
Sketch 3 (Above Boiling point):
At temperatures above the boiling point of water (100.0 degrees Celsius), the sketch would depict the water molecules in a gaseous state. The molecules have gained enough kinetic energy to break all the hydrogen bonds and move independently. The individual water molecules are now far apart and move randomly in a gas phase.
Unfortunately, as an AI text-based model, I am not able to directly view or analyze sketches. However, I can provide you with a step-by-step explanation based on the information you shared:
1. At 0.0 degrees Celsius: Water is in its solid form, which is commonly known as ice. Under the microscope, the sketches would show a lattice-like structure of water molecules held together by hydrogen bonds. Each water molecule consists of two hydrogen atoms bonded to one oxygen atom.
2. As the temperature rises above 0.0 degrees Celsius: The increased thermal energy causes the hydrogen bonds between water molecules to weaken. This results in the ice melting and transitioning into a liquid state. The sketches would reveal water molecules moving more freely, with less defined structure compared to the solid state.
3. As the temperature reaches 100.0 degrees Celsius: The increased thermal energy causes the water molecules to move even more vigorously. Eventually, the hydrogen bonds break completely, and the water transitions into a gaseous state, known as steam or water vapor. The sketches would show water molecules moving rapidly and randomly, without any apparent structure.
It is important to note that while these descriptions provide a general understanding of the changes occurring during the phase transitions, the specific arrangement of water molecules in the sketches would vary depending on the skill and intention of the artist.