Question

Як зміняться молекули води,якщо вона перетвориться на пару,а також як зміниться їхнє розташування та характер теплового руху. срочно помогите!!!!​

Answer 1

Відповідь:

Водяна пара, вода утворені однаковими молекулами — молекулами води. При переході води з рідкого стану в газоподібний збільшилась відстань між молекулами. У воді молекули коливаються біля положення рівноваги, іноді пересуваючись у межах рідини. Молекули пари рухаються вільно, змінюючи напрямок руху в результаті зіткнення з іншими частинками.

Answer 2

Changes in Water Molecules when it Converts to Steam

When water converts to steam, the molecules undergo several changes in terms of their arrangement and thermal motion. Here's a detailed explanation:

1. Molecular Structure: Water molecules (H2O) consist of two hydrogen atoms bonded to one oxygen atom. In the liquid state, these molecules are closely packed and held together by intermolecular forces, such as hydrogen bonding. However, when water is heated and reaches its boiling point (100 degrees Celsius at standard atmospheric pressure), it undergoes a phase change and transforms into steam or water vapor.

2. Arrangement of Molecules: In the gaseous state, the water molecules are more spread out compared to the liquid state. The intermolecular forces that held the liquid molecules together are weakened, allowing the molecules to move more freely and independently. As a result, the density of steam is much lower than that of liquid water.

3. Thermal Motion: The thermal motion of water molecules also changes when it converts to steam. In the liquid state, the molecules have relatively low kinetic energy and move in a more restricted manner. However, as water is heated and transitions to steam, the molecules gain more energy and move at higher speeds. The increased thermal energy causes the molecules to move in a more random and chaotic fashion.

4. Phase Change: The conversion of water to steam is an example of a phase change from a liquid to a gas. During this process, energy is absorbed from the surroundings in the form of heat. This heat energy breaks the intermolecular bonds between water molecules, allowing them to escape into the gas phase. The temperature remains constant during