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The Question & Answer (Q&A) Knowledge Managenet
The Internet has many places to ask questions about anything imaginable and find past answers on almost everything.
Phases of matter
A | B |
---|---|
molecules move fastest in this phase | plasma |
molecules move faster than liquids in this state | gas |
molecules move the slowest in this state | solid |
molecules move around each other in this state | liquid |
Heating a substance makes its atoms and molecules move faster. This happens whether the substance is a solid, a liquid, or a gas.
The motion of the particles is increased by raising the temperature. Conversely, the motion of the particles is reduced by lowering the temperature, until, at the absolute zero (0 K), the motion of the particles ceases altogether. Because the particles are in motion, they will have kinetic energy.
Note how temperature effects the motion of the atoms or molecules in a liquid. As the temperature of a solid, liquid or gas increases, the particles move more rapidly. As the temperature falls, the particles slow down. If a liquid is cooled sufficiently, it forms a solid.
Physical conditions like temperature and pressure affect state of matter. When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation).
For example, when the pressure increases then the temperature also increases. When the pressure decreases, then the temperature decreases. Because there is less mass in the can with a constant volume, the pressure will decrease. This pressure decrease in the can results in a temperature decrease.
The pressure of a given amount of gas is directly proportional to the temperature at a given volume. When the temperature of a system goes up, the pressure also goes up, and vice versa. The relationship between pressure and temperature of a gas is stated by the Gay-Lussac’s law.
Boyle’s Law – states that the volume of a given amount of gas held at constant temperature varies inversely with the applied pressure when the temperature and mass are constant.
The pressure of a gas is inversely proportional to its volume when temperature is constant. The product of pressure and volume is constant when temperature is constant. This relationship is known as Boyle’s law or Mariotte’s law .
If two letters are touching each other, they have a direct relationship. That is, pressure and temperature have a direct relationship, and volume and temperature have a direct relationship.
If temperature were to double the pressure would likewise double. Increased temperature would increase the energy of the molecules and the number of collisions would also increase causing the increase in pressure. Doubling the temperature likewise doubled the pressure.
Pressure and Water Temperature Points Pressure does not directly alter water temperature. Instead, it shifts the freezing, boiling and maximum density points. The temperature at which boiling and freezing occur will only hold true at sea level 3. Pressure can change the boiling point of water.
Inside a pressure cooker, the pressure can increase by an additional 15 psi, to almost 30 psi. At that pressure, water boils at 121°C (250°F).
Online Water Boiling Point Calculator
Absolute pressure | point | |
---|---|---|
[Microns] [μm Hg] | [in Hg] | [°C] |
200000 | 7.874 | 67 |
149352 | 5.880 | 60 |
100000 | 3.937 | 52 |
Cold water has a higher density than warm water. Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface.
So, it is a cold winter day, the outside air temperature is 30 °F, but the temperature of the ground 10 feet down is a balmy 50 °F.
Ocean Effect The sea air keeps things warmer at night and cooler during the day. This is because of the atmospheric mixing and local winds that are created. The last idea is one of big ocean currents. Large amounts of heat and energy move every day by the force of the wind acting on the ocean.
The temp gradient is about 1.6 deg per 100 ft. Thus at 1 mile deep it is about 84 deg plus 60 deg or about 144 deg.
Humans have drilled over 12 kilometers (7.67 miles) in the Sakhalin-I. In terms of depth below the surface, the Kola Superdeep Borehole SG-3 retains the world record at 12,262 metres (40,230 ft) in 1989 and still is the deepest artificial point on Earth.
Away from tectonic plate boundaries, it is about 25 °C per km of depth (1 °F per 70 feet of depth) near the surface in most of the world. So it might be around 100 F at about 2250 feet down (if I didn’t make an arithemetic mistake).
Derinkuyu, Cappadocia, Turkey Cappadocia city, located in central Turkey, is home to no less than 36 underground cities, and at a depth of approx. 85 m, Derinkuyu is the deepest. Unique to Derinkuyu is the cruciform church located between the third and fourth level and the barrel-vaulted ceiling.
One appeal is the energy efficiency and environmental friendliness of underground dwellings. However, underground living does have certain disadvantages, such as the potential for flooding, which in some cases may require special pumping systems to be installed.
The Earth’s crust is broken into many smaller plates that slide very slowly over a more mobile or ‘plastic’ material called the asthenosphere. The deepest hole within the U.S. is the Bertha Rogers gas well in Oklahoma at 32,000 feet (6 miles) deep. The well was halted because it struck molten sulfur.
This is the Kola Superdeep Borehole, the deepest manmade hole on Earth and deepest artificial point on Earth. During the Cold War, there was a race by the superpowers to drill as deep as possible into the Earth’s crust – and even to reach the mantle of the planet itself.
With such immense speed, you completely overshoot earth’s center. As you travel through the far end of the hole, gravity is now in the opposite direction and slows you down. You are slowed down to zero speed just as you emerge from the hole on the other side of the world.