What are the main factors that affect 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 is viscosity and what factors affect it?
viscosity, resistance of a fluid (liquid or gas) to a change in shape, or movement of neighbouring portions relative to one another. Viscosity denotes opposition to flow. The reciprocal of the viscosity is called the fluidity, a measure of the ease of flow. Molasses, for example, has a greater viscosity than water.
What are 2 things that affect viscosity?
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.
What factors affect viscosity quizlet?
What are the four factors that affect viscosity? Temperature, Concentration, Attractive Forces, Particle Size.
What affect the viscosity of the liquid?
The viscosity of a liquid usually depends on its temperature. Viscosity generally decreases as the temperature increases. Viscosity generally increases as the temperature decreases. The viscosity of a liquid is related to the ease with which the molecules can move with respect to one another.
What are the main factors that affect the viscosity of liquids and gases?
The main factors that affect viscosity of fluids are the size and shape of the particles and the temperature.
Why do factors affect viscosity?
Factors Impacting Viscosity The fluid that is very close to the pipe walls for instance travels more slowly than the fluid in the very center of the pipe. Fluid viscosity changes with temperature. Pressure has a small impact on gas viscosity and the pressure impact on the viscosity of a liquid is very small.
What causes changes in viscosity?
Viscosity generally increases as the temperature decreases. The viscosity of a liquid is related to the ease with which the molecules can move with respect to one another. Thus the viscosity of a liquid depends on the: strength of attractive forces between molecules, which depend on their composition, size, and shape.
What two main factors affect magma’s viscosity?
Viscosity of Magmas Viscosity is the resistance to flow (opposite of fluidity). Viscosity depends on primarily on the composition of the magma, and temperature. Higher SiO2 (silica) content magmas have higher viscosity than lower SiO2 content magmas (viscosity increases with increasing SiO2 concentration in the magma).
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 are the factors that affect the viscosity of a liquid 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.
What is cause for viscosity?
Viscosity is a measure of the resistance of a fluid towards being deformed when under shear stress. Hence, it is also known as shear viscosity. It is caused by the attractive forces between molecules in close contact, and the friction between molecular chains.
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 influence the viscosity of a lava?
Temperature, composition, and volatile (gas) content largely determine the viscosity of lava.
How does pressure affect viscosity?
Increase in pressure will increases the viscosity because inter molecular force of attraction increases.
Does temperature affect viscosity?
The viscosity decreases with an increase in temperature. Most liquids suffer the exponential relationship (Seeton, 2006) between temperature and viscosity rather than linear form (Fig. 6.1). The more viscous the fluid, the more sensitive it is to the temperature change.
What are the 3 types of magma?
It also contains small amounts of dissolved gases such as water vapor, carbon dioxide, and sulfur. The high temperatures and pressure under Earth's crust keep magma in its fluid state. There are three basic types of magma: basaltic, andesitic, and rhyolitic, each of which has a different mineral composition.
What is viscosity and what factors influence the viscosity of magma?
Viscosity is a fluid's resistance to flow. Three factors that affect magma viscosity are temperature, composition, and presence of dissolved gases. Explain how the viscosity of magma influences the explosiveness of a volcano. More viscous magmas tend to generate more explosive eruptions.
What is effect of temperature on viscosity?
The increase in temperature causes the kinetic or thermal energy to increase and the molecules become more mobile. The attractive binding energy is reduced and therefore the viscosity is reduced.
How does velocity affect viscosity?
Fluid velocity through porous media is approximated as inversely proportional to the kinematic viscosity. A decrease in viscosity therefore increases the velocity of a compound through porous media.
What factors affect the viscosity of lava?
Temperature, composition, and volatile (gas) content largely determine the viscosity of lava. Temperature: The hotter the lava, the lower the viscosity (the thinner it is). The cooler the lava, the higher the viscosity (the thicker it is).
What are 3 types of magma and what is their viscosity?
Three general types are recognized: Basaltic magma — SiO2 45-55 wt%, high in Fe, Mg, Ca, low in K, Na. Andesitic magma — SiO2 55-65 wt%, intermediate. in Fe, Mg, Ca, Na, K….Temperature of Magmas
- Basaltic magma – 1000 to 1200oC.
- Andesitic magma – 800 to 1000oC.
- Rhyolitic magma – 650 to 800oC.
Sep 14, 2015
Which factors increase the viscosity of magma?
- The viscosity of magma increases with: high % silica and cooler temperatures.
- The three factors that influence the viscosity of a lava are temperature the dissolved gases it contains and its chemical composition.
- Magmas that are more rhyolitic have a higher gas content.
What is the effect of pressure and temperature on viscosity?
The shear viscosity of the liquids that are used as lubricants increases with increasing pressure and decreases with increasing temperature and, at sufficiently large stress (rate), decreases with increasing shear stress (shear rate).
What causes viscosity to change?
Viscosity changes based on load and temperature. When temperature increases, the lubricant becomes thinner and the viscosity becomes lower. Inversely as the temperature decreases, the lubricant thickens and viscosity increases, making it more difficult to pour or pump.
What are 3 types of magma?
It also contains small amounts of dissolved gases such as water vapor, carbon dioxide, and sulfur. The high temperatures and pressure under Earth's crust keep magma in its fluid state. There are three basic types of magma: basaltic, andesitic, and rhyolitic, each of which has a different mineral composition.
How does temperature affect magma 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.
What are the 3 major types of magma?
There are three basic types of magma: basaltic, andesitic, and rhyolitic, each of which has a different mineral composition. All types of magma have a significant percentage of silicon dioxide. Basaltic magma is high in iron, magnesium, and calcium but low in potassium and sodium.
What factors affect the formation of magma?
- The main factors involved in the formation of magma are temperature, pressure, water content, and mineral composition.
- Temperature generally increases with depth in Earth's crust. …
- Pressure also increases with depth. …
- The third factor that affects the formation of magma is water content.