A) A system of proteins undergoes a phase transition. Which of the following quantities would you...

A) A system of proteins undergoes a phase transition. Which of the following quantities would you expect to change the most significantly?

The total number of particles in the system, The density of the system, The total mass of the system, or These will all not change

B) A flow of liquid has a Reynold's number of 1 million. Which of the following statements would best describe this flow?

Flow that moves from high to low, Flow that moves for low to high, Smooth flow with little internal rotations, or Rough flow with many internal rotations

C) In order for simple harmonic motion (vibration) to occur:

A randomly varying force must be applied to the system

A constant force must be applied to the system

A force that attempts to push the system away from an equilibrium position must be applied to the system

A force that attempts to restore the system to an equilibrium position must be applied to the system

Solutions

Expert Solution

A) During Phase transition we know that A substance changes its state i.e from solid to liquid or liquid to gas and vice versa. So during such a transition we know that the shape of the substance will change.This a result of change of change in Density and Volume. The number of particles and the Total mass will always remain a constant. Therefore the correct answer is The Density of the system changes during Phase Transition.

B) Reynolds Number is a Dimensionless Quantity which determines whether the flow of liquid is smooth or rough.

Reynolds number between 0 and 2000 denotes smooth flow and above 3000 denotes Rough Flow . We are having a Reynolds number of ! million. Therefore the right answer is "Rough Flow with many Internal Rotations".

C) A particle is said to execute simple harmonic motion if its acceleration is directly proportional to the displacement from a fixed point. So inorder to achieve Simple Harmonic Motion we always have a restoring force which tends to bring back the particle to Equilibrium. Therefore, the right answer is force that attempts to restore the system to an equilibrium position must be applied to the system .

Hope It Helps!!

genius_generous answered 1 year ago

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