Rayleigh B�nard Fargination Problem

2. a) Liquid nitrogen boiling at -196°C is a physical property because it describes the boiling point of a substance, which is also when it changes state. A change of state, from a liquid to a gas, is a physical property because there is no new substance being created.

The objective of the experiment “Keeping it Liquid” was to figure out what it takes to keep a compound in a liquid form which caused a phase change. A phase change is when a substance changes from one state or phase to another. There are three main phases that normally occur and they are called Evaporation, Deposition, and Melting. Evaporation is where a liquid changes to a gas. An example of evaporation is when water drops form on the glass of a cold drink on a warm day. Deposition is where a gas vapor goes directly into the solid phase without becoming a liquid first. An example of Deposition often occurs on windows during the winter months. While Melting is where a solid turns into a liquid. Melting occurs when ice turn into a liquid when

25. Repeat steps 17. to 24. two more times to produce three data for the de-ionised water of (about) 20°C.

This is the same process as in distillation that involves evaporating a liquid into a gas phase, then condensing the gas back into a liquid

Evaporation- when water evaporates in the form of water vapor by the heat of the

because the dew point is below freezing and the moisture goes from a gas to a

2A. Evaporation is related to the properties of matter because it is a liquid and a gas. We know this because there are three states of matter which are soild, liquid and gas since evaporation first starts as a liquid (water). Then it turns into gas (cloud).

We represent this fact graphically in the following figure \ref{Figure:Phase}. Each part of the figure describes briefly.

Phase of matter will affect pressure. “People often think of the states of matter changing from solid to liquid or liquid to gas based on temperature, but the pressure also has an impact on the state” (Nelson). In most cases, you would need a higher temperature to change the state with a higher pressure.

moisture and made solid, and can be dissolved neither by the waves nor the power of

becomes a liquid and some may even evaporate but we know as it is in us to know that it is the same piece of

These phases can go from one to another when affected by certain things, which is known as phase changes. To switch from a solid to a liquid, the solid must melt. On the other hand, to switch from a liquid to a solid, freezing must occur. Furthermore, to switch from a liquid to a gas, a process known as evaporation must take place. In contrast, to

In the following sections, we discuss morphology and different derived properties of the cluster, involving the gas fraction, entropy, total hydrostatic mass and its cooling time.

An increase in internal energy is required to convert a solid to a liquid,. Conversely, a reduction in internal energy can cause liquids to freeze or solidify. When heat is added to a solid or a liquid, the temperature of the sample does not necessarily rise. During a phase change, heat is added to the sample without an increase in temperature. Heat absorbed or released as the result of a phase change is called latent heat. There is no temperature change during a phase change, thus there is no change in the kinetic energy of the particles in the material. Latent heat is an intensive

The Bernoulli’s equation is a momentum based force relation and was derived from the following assumptions: