Explain why the viscosity of liquids decreases with an increase in temperature while the viscosity of...
- Explain why the viscosity of liquids decreases with an increase in temperature while the viscosity of gases increases with an increase in temperature.
Determine the dynamic viscosity of a liquid having a kinematic viscosity of 6.5 stokes and a specific gravity of 1.8.
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Explain why the viscosity of liquids decreases with an
increase in temperature while the viscosity of...
Select the true statement: a. Gas solubility in liquids decreases as the temperature rises, while solid...
Select the true statement: a. Gas solubility in liquids decreases as the temperature rises, while solid solubility in liquids decreases as the temperature rises b. Gas solubility in liquids decreases as the temperature rises, while solid solubility in liquids increases as the temperature rises c. Gas solubility in liquids increases as the temperature rises, while solid solubility in liquids decreases as the temperature rises d. Gas solubility in liquids increases as the temperature rises, while solid solubility in liquids increases...
Which statements about viscosity are true? 0 (ii) (1) Viscosity increases as temperature decreases. Viscosity increases...
Which statements about viscosity are true? 0 (ii) (1) Viscosity increases as temperature decreases. Viscosity increases as molecular weight increases. Viscosity increases as intermolecular forces increase. A) (i) only B)(ii) and (ii) C) (i) and (iii) D) none E) all ANSWER. Write the word or phrase that best completes each statement or answers the question. 18) The rate-determining step is the elementary step 18) IPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 19),...
I was wondering if you would be able to help me with Solids, liquids, gases and...
I was wondering if you would be able to help me with Solids, liquids, gases and their relations to IMFs. I am an AP Chemistry high school student and have a test tomorrow. Here is an example question 1. As we increase the temp. of a liquid, its properties change. Which of the following would not be an expected change om the properties of a typical liquid as we increase its temperature. a. decrease in viscosity b. decrease in density...
[Viscosity Questions] about chemistry: (multiple choice about viscosity) Please help. Thanks!! Explain each one thanks! 1....
[Viscosity Questions] about chemistry: (multiple choice about viscosity) Please help. Thanks!! Explain each one thanks! 1. A fluid is considered "Newtonian" if: a) it experience laminar flow b) η is independent of the velocity gradient c) η is a constant d) the shearing force is exerted in the direction of the flow e) all of the above 2. The viscosity η is a function of: a) temperature b) Pressure c) composition d) volume e) a, b, and c are correct...
At near room temperature, the electron conductivity of a metal decreases as the temperature is increases,...
At near room temperature, the electron conductivity of a metal decreases as the temperature is increases, while in a typical semiconductor, the electron conductivity increases as the temperature is raised. Can you explain why? Can you also predict that in an insulator, what is the trend of electron conductivity (Please be as brief as possible but clearly written)
1) At equilibrium, there is no overall change in the concentrations of reactants and products. Why,...
1) At equilibrium, there is no overall change in the concentrations of reactants and products. Why, then, is this state described as dynamic? (3 marks) 2) Increasing temperature tends to increase the solubility of a solid in a liquid, but it tends to decrease the solubility of gases. Explain why. (3 marks)
tafp 150 quiz 3 Viscosity does not change with temperature. A. true B false 2. The...
tafp 150 quiz 3
Viscosity does not change with temperature. A. true B false 2. The primary function of the liquid in hydraulic system is to A. clean system parts B. remove heat from the system C. transmit energy to do the work the system is designed to D. prevent rust and corrosion of system components 3. The amount of friction is constant, even with varying forces pu the surfaces together. A true B. false 4. The cleanliness of the...
1. Explain how a fractionating column increases the separation of two liquids. 2. What is an...
1. Explain how a fractionating column increases the separation of two liquids. 2. What is an azeotrope? Do you think the mixture used in the lab is an example of an azeotrope? Explain. 3. Explain how the boiling point of a liquid is affected by the addition of a non-volatile solute (hint: it is a colligative property). Is the temperature above such solution lower, higher or the same as the pure liquid? Explain why. 4. You were asked to record...
Why does the pressure of a gas sample increase when the temperature is increased? Assume the...
Why does the pressure of a gas sample increase when the
temperature is increased? Assume the volume remains constant.
Select all that apply.
Why does the pressure of a gas sample increase when the temperature is increased? Assume the volume remains constant. Select all that apply. Choose one or more: O A. The average kinetic energy of the gas increases as the temperature increases, causing more energetic collisions with the walls. O B. As the temperature of the gas increases,...
1.Pentane (C5H12) has a surface tension of 1.61 x 10 ^ -2, while ethanol (C2H5OH) has...
1.Pentane (C5H12) has a surface tension of 1.61 x 10 ^ -2, while ethanol (C2H5OH) has a surface tension of 2.23 x 10 ^ -2, which would have the highest viscosity? A) pentane B) ethanol C) both have the same viscosity D) cannot be determined with the information provided 2.Which of the following is true for surface tension? l is a measure of the surface area exposed by the liquid ll increases with increasing intermolecular attraction forces lll decreases with...
Which statements about viscosity are true? 0 (ii) (1) Viscosity increases as temperature decreases. Viscosity increases as molecular weight increases. Viscosity increases as intermolecular forces increase. A) (i) only B)(ii) and (ii) C) (i) and (iii) D) none E) all ANSWER. Write the word or phrase that best completes each statement or answers the question. 18) The rate-determining step is the elementary step 18) IPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 19),...
1) At equilibrium, there is no overall change in the concentrations of reactants and products. Why, then, is this state described as dynamic? (3 marks) 2) Increasing temperature tends to increase the solubility of a solid in a liquid, but it tends to decrease the solubility of gases. Explain why. (3 marks)
tafp 150 quiz 3
Viscosity does not change with temperature. A. true B false 2. The primary function of the liquid in hydraulic system is to A. clean system parts B. remove heat from the system C. transmit energy to do the work the system is designed to D. prevent rust and corrosion of system components 3. The amount of friction is constant, even with varying forces pu the surfaces together. A true B. false 4. The cleanliness of the...
Why does the pressure of a gas sample increase when the
temperature is increased? Assume the volume remains constant.
Select all that apply.
Why does the pressure of a gas sample increase when the temperature is increased? Assume the volume remains constant. Select all that apply. Choose one or more: O A. The average kinetic energy of the gas increases as the temperature increases, causing more energetic collisions with the walls. O B. As the temperature of the gas increases,...
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