Which of the following changes of state is exothermic?

1—freezing, condensation, and deposition, which are the reverse of fusion, sublimation, and vaporization—are exothermic.

During which change of state do atoms or molecules become more ordered *?

sublimation. Solids have the most ordered arrangement of molecules or atoms, whereas gases have the least. The order of molecules of liquids is in-between. Boiling is the process in which a liquid transforms to a gas.

During which phase change do the molecules become more ordered?

Chapter 3

A	B
During which phase change does the arrangement of water molecules become more orderly	freezing
The phase change in which substance changes from a liquid to a gas is	vaporization
The phase change in which a substance changes from a solid to a liquid is	melting

What is the process of gas turning into liquid called?

At a certain temperature, the particles in a liquid have enough energy to become a gas. The process of a liquid becoming a gas is called boiling (or vapourization), while the process of a gas becoming a liquid is called condensation.

Is melting a endothermic or exothermic?

Melting is an endothermic reaction in which the total amount of heat in the substance, also known as the enthalpy, increases. Solid matter can only…

Do atoms or molecules become more ordered?

Each phase change has a specific name, based on what is happening to the particles of matter. The less ordered gas molecules loose energy, slow down, and become more ordered. The more ordered liquid molecules gain energy, speed up, and become less ordered.

Which phase of matter has the lowest energy?

solid state
Matter in its solid state has the lowest amount of thermal energy (for that type of matter). Because solids have less thermal energy than liquids or gasses, the atoms in their solid state move very little.

What is the transition from gas to solid called?

Deposition is the phase transition in which gas transforms into solid without passing through the liquid phase. Deposition is a thermodynamic process. The reverse of deposition is sublimation and hence sometimes deposition is called desublimation.

What is the reverse phase change of condensation?

In simple words, condensation is a kind of process in which phase of a chemical substance changes from vapor to liquid state. Generally, the reverse reaction of the evaporation of a chemical substance is known as condensation. Cooling of air to its dew point generally indicates condensation.

What is the point at which a gas turns to a liquid?

For pure substances, the temperature at which this change occurs is quite precise and is called the boiling point of the substance. If a gas is cooled, its particles will eventually stop moving about so fast and form a liquid. This is called condensation and occurs at the same temperature as boiling.

What does Dew look like on spider webs?

“There is actually a web spun above the funnel, which is where the spider hides while waiting prey. These webs are nearly invisible unless covered with dewdrops on a cool morning,” said McGowan. Grass Spiders can move very quickly over the surface, and (especially when the web is dry) it looks like the spider is walking on air.

When do spiders spin their webs it is a beautiful day?

An old saying about grass spiders: when there is dew on their webs in the lawn in the morning, it will be a beautiful day. When spiders spin their webs ‘fore noon, Sunny weather’s coming soon. If you step on a spider, you’ll bring on rain.

What does it mean when a spider descends from the roof?

A spider descending upon you from the roof is a token that you will soon have legacy from a friend. When spiders are many and spinning their webs, the spell will soon be very dry An old saying about grass spiders: when there is dew on their webs in the lawn in the morning, it will be a beautiful day.

Where are the spider webs on my lawn?

Following some nice fall rains, many homeowners have discovered beautiful webs among the grass blades of their lawn in the morning. (Courtesy of University of Missouri Extension) SPRINGFIELD, Mo. — Following some nice fall rains, many homeowners have discovered beautiful webs among the grass blades of their lawn in the morning.