What are two factors that determine the viscosity of magma?
Viscosity depends on primarily on the composition of the magma, and temperature.
Which factor most determines the viscosity of magma?
The viscosity of a magma is affected by its silica content and temperature. The amount of silica influences the magma's viscosity in such a way that if the silica content is low the magma would have low viscosity whereas a high content of silica would make the magma more thick and sticky.
What factors determine viscosity?
Increase in temperature decreases viscosity. Increases in pressure increase viscosity in liquids. In water, it decreases whereas, in gases, it remains the same.
- Increase in temperature decreases viscosity.
- Increases in pressure increase viscosity in liquids. In water, it decreases whereas, in gases, it remains the same.
What are the 3 factors of viscosity?
Those are:
- Fluid Temperature: Usually the viscosity of liquids decreases with an increase in temperature. …
- Flow Conditions: For laminar flow the viscosity of liquid remains constant while for turbulent flow viscosity changes.
- Pressure: With an increase in pressure, the viscosity of gases usually increase.
What are the three factors that influence viscosity of a lava?
Temperature, composition, and volatile (gas) content largely determine the viscosity of lava.
What are the three factors that influence viscosity of a lava quizlet?
Three factors that affect magma viscosity are temperature, composition, and presence of dissolved gases.
What are the three factors that affect the viscosity of a lava?
Temperature, composition, and volatile (gas) content largely determine the viscosity of lava.
Which of the following factors can affect the viscosity of lava?
Answer and Explanation: The three factors that influence the viscosity of a lava are temperature, the dissolved gases it contains, and its chemical composition.
What are 4 factors that affect viscosity?
The viscosity of a material is affected by temperature, pressure, nature of fluid, velocity gradient , etc.
What factors affect viscosity quizlet?
What are the four factors that affect viscosity? Temperature, Concentration, Attractive Forces, Particle Size.
What controls the viscosity of magma quizlet?
The viscosity of a magma is directly related to its silica content. The more silica in magma the greater its viscosity. Silica slows the flow of magma because silicate tends to form chain like molecules that tangle one another.
What factors control the viscosity of a melt?
Answer: Viscosity in a melt is controlled by its composition (specifically, silica content) and temperature. Temperature affects viscosity because heat causes chemical bonds to break more easily. Therefore, a hotter lava of a given composition is less viscous than a Page 2 cooler lava of the same composition.
What are the three factors that influence the viscosity of a lava?
Temperature, composition, and volatile (gas) content largely determine the viscosity of lava.
What are the two factors that affect viscosity in today’s experiment?
Increase in temperature decreases viscosity. Increases in pressure increase viscosity in liquids. In water, it decreases whereas, in gases, it remains the same.
- Increase in temperature decreases viscosity.
- Increases in pressure increase viscosity in liquids. In water, it decreases whereas, in gases, it remains the same.
What are the main factors affecting high viscosity quizlet?
Terms in this set (7)
- Size. Smaller particle move/flow more easily than large particles.
- Shape. Bulky shaped particles affects the flow rate,the bulkier, the slower it flows.
- Speed. Slow moving particles are more viscous.
- Attraction. …
- Temperature. …
- Molases. …
- Factors affecting viscousity.
What factors affect viscosity of magma quizlet?
VISCOSITY is directly related to the amount of silica (sand) in the magma. As silica content increases, viscosity increases. The magma slows down. WATER CONTENT is inversely related to viscosity.
What contributes to viscosity of a liquid?
Viscosity is influenced by the composition of the crude oil, the temperature, dissolved gas content, and the pressure. As temperature increases, the viscosity will decrease. As a result, viscosity measurements are always reported with the temperature at which the measurement is made.
What are the three factors that influence viscosity of a magma lava?
A magma's viscosity is largely controlled by its temperature, composition, and gas content (see downloadable programs at the bottom of this page). The effect of temperature on viscosity is intuitive. Like most liquids, the higher the temperature, the more fluid a substance becomes, thus lowering its viscosity.
What is viscosity and what factors influence the viscosity of magma How does viscosity affect the explosiveness of a volcano?
How does magma viscosity influence the explosive potential? A more viscous (thick) magma will produce a more violent eruption This is controlled in part by the concentration of silica in the magma. A magma with low silica (<45%) will be runny and so the eruption will not be explosive. …
What determines the viscosity of magma quizlet?
The viscosity of magma depends upon its silica content and temperature.
Can affect the viscosity of magma?
A magma's viscosity is largely controlled by its temperature, composition, and gas content (see downloadable programs at the bottom of this page). The effect of temperature on viscosity is intuitive. Like most liquids, the higher the temperature, the more fluid a substance becomes, thus lowering its viscosity.
Which of the following are ways that viscosity affect gases in magma?
Which of the following are ways that viscosity affects gases in magma? Viscous magma prevents gas from escaping easily.
How does the viscosity of the magma influence the type of eruption?
Ultimately, the viscosity of a magma will determine the shape a volcano takes over continued eruptions. A magma's silica content will not only control the rock type that forms, it also controls the relative viscosity of the magma. Differences in a magma's viscosity will determine the shape a volcano takes.
How does temperature and composition of the magma affect its viscosity?
Viscosity of magma, the resistance to flow depends on composition of the magma and temperature. Higher silica content means higher viscosity. But lower temperatures and low gas content mean higher viscosity. Hence, lower viscosity and low gas content mean higher temperature of magma.
How does viscosity determine lava flow?
Differences in a magma's viscosity will determine the shape a volcano takes. High-silica (basalt) magma has a much lower viscosity. It flows much easier and over longer distances. As low-silica magma cools, it hardens to rock, adding a new thin layer of rock to the volcano.
How does viscosity of lava determine the shape of volcanoes?
The low viscosity of the magma allows the lava to travel down slope on a gentle slope, but as it cools and its viscosity increases, its thickness builds up on the lower slopes giving a somewhat steeper lower slope. Most shield volcanoes have a roughly circular or oval shape in map view.
Why is it important to determine the viscosity of magma?
Why is it important to determine the viscosity of magma? The viscosity of the magma however is also an important factor in determining whether an eruption will be explosive or nonexplosive. A low-viscosity magma like basalt will allow the escaping gases to migrate rapidly through the magma and escape to the surface.
Which of the following factors makes magma less viscous?
Gas dissolved in magma (mostly water, carbon dioxide, and sulfur dioxide) makes the magma less viscous. Viscosity describes a fluid's resistance to flow, or how thick or sticky the fluid is.
What is viscosity controlled by?
Answer: Viscosity in a melt is controlled by its composition (specifically silica content) and temperature. Temperature affects viscosity because heat causes chemical bonds to break more easily. Therefore a hotter lava of a given composition is less viscous than a Page 2 cooler lava of the same composition.
How does viscosity affect the flow of magma from a volcano?
Ultimately, the viscosity of a magma will determine the shape a volcano takes over continued eruptions. A magma's silica content will not only control the rock type that forms, it also controls the relative viscosity of the magma. Differences in a magma's viscosity will determine the shape a volcano takes.