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How does the release of trapped gases in magma cause a volcano to erupt?
Some of the trapped gas in a magma will be water vapour, but at very high temperature. As the magma rises in the volcanic pipe, the pressure will lower, and the entrained vapour will expand rapidly = an explosion.
What provides the force that causes magma to erupt to the surface?
The force that causes magma to erupt to the surface is primarily due to the build-up of pressure from the expansion of gases within the magma chamber. As the pressure exceeds the strength of the surrounding rock, the magma forces its way through the crust to reach the surface, resulting in an eruption.
How does the changes in temperature and pressure affect the volume and the amount of gases?
In general chemistry we are taught the ideal gas equation of state PV=nRT. n is the number of moles of gas and R is the molar gas constant. This is an extremely important equation in the study of thermodynamics.
What happens when gas hydrates are brought to the surface?
When gas hydrates are brought to the surface, they lose stability due to the change in pressure and temperature. As a result, the hydrates dissociate into gas and water, releasing the trapped gas. This release of gas can cause pressure build-up and potentially lead to explosions or other hazards.
Why might a bottle of hair spray explode if left in a hot car all day?
Increasing the temperature the pressure of the gas increase also.
What type of gases get trapped in the ozone layer to cause this effect?
CFC's get trapped. They react with ozone to deplete it.
What are the infrared dangers?
The danger is, if the infrared is trapped by atmospheric gases it can cause greenhouse effect.
How does the release of trapped gases in magma cause a volcano to erupt?
Some of the trapped gas in a magma will be water vapour, but at very high temperature. As the magma rises in the volcanic pipe, the pressure will lower, and the entrained vapour will expand rapidly = an explosion.
Can build up of sewer gases cause an explosion?
Yes, it contain methane.
What provides the force that causes magma to erupt to the surface?
The force that causes magma to erupt to the surface is primarily due to the build-up of pressure from the expansion of gases within the magma chamber. As the pressure exceeds the strength of the surrounding rock, the magma forces its way through the crust to reach the surface, resulting in an eruption.
What is the primary cause of the smog build up in Leos Angele's?
Traffic fumes trapped under a low layer of cloud on a calm day is the primary cause.
How does the changes in temperature and pressure affect the volume and the amount of gases?
In general chemistry we are taught the ideal gas equation of state PV=nRT. n is the number of moles of gas and R is the molar gas constant. This is an extremely important equation in the study of thermodynamics.
Do the gases trapped in the magma cause the magma to erupt to the surface?
No, the fact that the magma has such a low density is why it rises. However, gasses do effect the manner in which it erupts.
What happens when gas hydrates are brought to the surface?
When gas hydrates are brought to the surface, they lose stability due to the change in pressure and temperature. As a result, the hydrates dissociate into gas and water, releasing the trapped gas. This release of gas can cause pressure build-up and potentially lead to explosions or other hazards.
Why might a bottle of hair spray explode if left in a hot car all day?
Increasing the temperature the pressure of the gas increase also.
How might greenhouse gases cause climatic changes?
The build up of greenhouse gases is trapping more heat, causing global warming and climate change.
How does heavy meal precipitate angina?
A heavy meal can precipitate angina due to the pressure and gases that build up after this activity. Meals that are high in sodium and can cause water retention around the arteries or constrict the blood vessels commonly are the culprit in these situations.
