Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer?

EduRev

All Courses

Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity

Open App

Class 11 Exam > Class 11 Questions > Variation of viscosity (q) with temperature T...

Variation of viscosity (q) with temperature T is given by

Q. Energy of activation required to move into a hole is

a)
2.303 cal
b)
4.606 cal
c)
0.434 cal
d)
0.217 cal

Correct answer is option 'A'. Can you explain this answer?

Join for Free

Join for Free

Most Upvoted Answer

Variation of viscosity (q) with temperature T is given byQ.Energy of a...

Answered by Mohit Rajpoot · View profile

View all answers Start learning for free

Explore Courses for Class 11 exam

Similar Class 11 Doubts

Direction (Q. Nos. 11-13) This section contains a paragraph, wach describing theory, experiments, data etc. three Questions related to paragraph have been given.Each question have only one correct answer among the four given options (

View answer

Statement I : A certain amount of energy called activation energy (E

View answer

Attempt All sub parts from each question.Newtonian and non-Newtonian fluid: Viscosity is the physical property that characterizes the flow resistance of simple fluids. Newton’s law of viscosity defines the relationship between the shear stress and shear rate of a fluid subjected to a mechanical stress. The ratio of shear stress to shear rate is a constant, for a given temperature and pressure, and is defined as the viscosity or coefficient of viscosity. Newtonian fluids obey Newton’s law of viscosity. The viscosity is independent of the shear rate. Example: air, water, alcohol etc. Non-Newtonian fluids do not follow Newton’s law thus, their viscosity (ratio of shear stress to shear rat e) is not constant and is dependent on the shear rate. Example: honey, ketchup etc. Non-Newtonian fluids can be categorized into four types based on the way a fluid’s viscosity changes in response to variations in shear rate.• Pseudoplastic: Materials whose viscosity decreases as the shear rate increases. This type of flow behavior is sometimes called shear thinning. Example: Cake batter, agar-agar and fruit juice concentrates, nail polish etc.• Dilatant: M aterials whose viscosity increases as the shear rate increases. This type of behavior is sometimes called shear-thickening. Example: Suspension of corn starch in water and candy compounds etc..• Thixotropic: M aterials whose viscosity decreases when sheared at a constant rate over time. Example: Yogurt, gelatin gel, honey etc.• Rheopectic: M aterials whose viscosity increases when sheared at a constant rate over time. Example: Printer ink, gypsum paste etc.Q. Viscosity of pseudoplastic non-Newtonian fluid

View answer

Attempt All sub parts from each question.Newtonian and non-Newtonian fluid: Viscosity is the physical property that characterizes the flow resistance of simple fluids. Newton’s law of viscosity defines the relationship between the shear stress and shear rate of a fluid subjected to a mechanical stress. The ratio of shear stress to shear rate is a constant, for a given temperature and pressure, and is defined as the viscosity or coefficient of viscosity. Newtonian fluids obey Newton’s law of viscosity. The viscosity is independent of the shear rate. Example: air, water, alcohol etc. Non-Newtonian fluids do not follow Newton’s law thus, their viscosity (ratio of shear stress to shear rat e) is not constant and is dependent on the shear rate. Example: honey, ketchup etc. Non-Newtonian fluids can be categorized into four types based on the way a fluid’s viscosity changes in response to variations in shear rate.• Pseudoplastic: Materials whose viscosity decreases as the shear rate increases. This type of flow behavior is sometimes called shear thinning. Example: Cake batter, agar-agar and fruit juice concentrates, nail polish etc.• Dilatant: M aterials whose viscosity increases as the shear rate increases. This type of behavior is sometimes called shear-thickening. Example: Suspension of corn starch in water and candy compounds etc..• Thixotropic: M aterials whose viscosity decreases when sheared at a constant rate over time. Example: Yogurt, gelatin gel, honey etc.• Rheopectic: M aterials whose viscosity increases when sheared at a constant rate over time. Example: Printer ink, gypsum paste etc.Q. A fluid, whose viscosity changes with the rate of deformation or shear stain is known as

View answer

Importance of high specific heat capacity of water for life Specific heat capacity of a substance is the amount of heat required to raise the temperature of that substance by 1 K. It is expressed in the units J/ (kg K). A high specific heat of a substance means that a large amount of heat is required to raise the temperature of the substance. Water has the highest known specific heat capacity. Its specific heat capacity is 4.186 K J/ (kg K) i.e. to raise the temperature of 1 kg of water by 1 Kelvin it requires 4.186 KJ of heat. For comparison sake, Copper requires only 385 Joules of heat to raise 1 kilogram of copper by 1 Kelvin. It also interesting to know that the specific heat capacities in two other phases of water (i.e. ice and water vapour) are less than this. High specific heat of water is mainly due to the presence of a large number of hydrogen bonds between molecules of water. On a beach on a sunny day, it is noticed that the sand is often quite hot to walk on, but the water is always cool, even in the shallows. This is because sand has a lower specific heat capacity than that of water. Sand takes less energy to raise the temperature by one degree. Because water has a high specific heat capacity, it requires more energy to raise the temperature by one degree. Since the sun puts same rate of energy on water and sand, which heats up sand more quickly and water more slowly. Water covers around 70% of the Earth's surface and its high specific heat plays a very important role to sustain life in the earth. It is able to absorb a lot of heat without a significant rise in the temperature. When temperatures decrease, the heat which is stored is released, restraining a rapid drop in temperature. The combined effect is the buffering of heat. A relatively constant temperature without sudden rise and drop is essential to sustain life. Hence water is important for life.Q. Which statement is false?

View answer

Top Courses for Class 11View all

CUET Mock Test: Humanities Subjects 2025

Psychology Practice Tests: CUET Preparation

Top Courses for Class 11

View all

Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer?

Share with a Friend

Answer this doubt

Question Description
Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer?.

Solutions for Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11. Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.

Here you can find the meaning of Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Variation of viscosity (q) with temperature T is given byQ.Energy of activation required to move into a hole isa)2.303 calb)4.606calc)0.434cald)0.217calCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 11 tests.

Explore Courses for Class 11 exam