Bissoy.com
Doctors Medicines MCQs Q&A

When the boundary moves the solute atoms migrate along with the boundary and exert a drag that reduces the boundary velocity. The magnitude of the drag will depend on ______

When the boundary moves the solute atoms migrate along with the boundary and exert a drag that reduces the boundary velocity. The magnitude of the drag will depend on ______ Correct Answer Concentration in the boundary

The magnitude of the drag will depend on the binding energy and the concentration in the boundary. The higher mobility of special boundaries can, therefore, possibly be attributed to a low solute drag on account of the relatively more c1ose-packed structure of the special boundaries.

Related Questions

The nature of normal grain growth in the presence of a second phase deserves special consideration. The moving boundaries will be attached to the particles exert a pulling force on the boundary restricting its motion. Therefore if the boundary intersects the particle surface at 90° the particle will feel a pull of (2πrγcosΘ)*sinΘ. This will be counterbalanced by an equal and opposite force acting on the boundary. As the boundary moves over the particle surface Θ changes and the drag reaches a maximum value, this happens when Θ becomes______
The total drag is a sum of the skin drag and the pressure drag. Which among of the following options, states the correct formula for skin drag and pressure drag? (Here µ stands for dynamic viscosity of fluid, D stands for diameter of the sphere and U stands for velocity of flow of fluid.)
A snail moves 25 m South, then turns left and moves 125 m, then turns left and moves 10 m, again turns left and moves 75 m and lastly turns right and moves 15 m. Where is the snail now with reference to its starting position?
Gaurav cycles towards South-West for a distance of 6 m and stops there. Further, he moves towards East a distance of 10 m and from there he moves towards North-East a distance of 6 m. Next, he moves towards West a distance of 6 m. Now, he moves towards North-West a distance of 2 m. Next, he moves towards West a distance of 4 m and then towards South-West 6 m and stops at that point. Now, where is he from the starting point?
In a crank and slotted lever type quick return mechanism, the link moves with an angular velocity of 20 rad/s, while the slider moves with the linear velocity of 1.5 m/s. The magnitude and direction of Coriolis component of acceleration with respect to angular velocity are
A brass ball is tied to a thin wire and swung so as to move uniformly in a horizontal circle. Which of the following statements in this regard is/are true?
1. The ball moves with constant velocity.
2. The ball moves with constant speed.
3. The ball moves with constant acceleration.
4. The magnitude of the acceleration of the ball is constant.
Select the correct answer:
Two buses A and B moved from the same bus stop point. Bus A moved 2.5 km west and then turns left and moves 3 km, then turns right and moves 1.5 km and stops. Bus B moves 1 km in east and then turns right and moves 3 km and stops. Where is bus B with respect to bus A?
A rider is riding his bike along the sides of a square ground. He drives the bike with the speed of 10 km/h along one side, 15 km/h along another side, 18 km/h along the third side, and 20 km/h along the last side and reaches the starting point. What is the average speed of the bike along the sides of the ground?
Which of the following features of atoms determine the degree to which the solute atoms dissolve in the solvent atoms? 1. Atomic size factor 2. Crystal structure 3. Electronegativity
Deepak moves 5 km south from point R and reaches point P, then moves 7 km right and reaches point Q. Then he takes 2 right turns during which he moves 3 km and 2 km respectively to reach point S. Then he takes left turn and moves 2 km to reach T. Then find the distance between points R and T.