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a. Obtain two general expressions (in terms of measureable quantities) for the entropy change dS that accompanies the reversible expansion of an ideal gas, first using T and V as independent variables, and then T and P. Your result should be in the form dS = MdT + NdV (or NdP). Also obtain simplified expressions for the special case of an isothermal reversible expansion.
b. Calculate the entropy change when 5 moles of an ideal gas expands from 10 liters to 100 liters isothermally and reversibly at 300 K. Repeat for an irreversible, isothermal expansion at 300 K from 10 to 100 liters against a constant opposing pressure of 1 atm.
c. Create an isolated system by including the surroundings with the gas in part b. Calculate the overall entropy change for this isolated system, for both the reversible and irreversible processes.
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 3.7 m/s. The car is a distance d away. The bear is 30 m behind the tourist and running at 6.0 m/s. The tourist reaches the car safely. What is the m..
If a rocket's exhaust speed is 160 m/s relative to the rocket, what fraction of its initial mass must be ejected to increase the rocket's speed by 50 m/s
A 5-kg block of ice is at a temperature of -27oC. How much heat must be added to the ice to produce 5 kg of liquid water with a final temperature of 35 oC?
Flow in a long straight pipe is turbulent. The average velocity, v, at a distance, y, from the pipe wall depends on roughness height of the pipe, k.
At a county fair there is a betting game that involves aspinning wheel. As the drawing shows, the wheel is set intorotational motion with the beginning of the angular section labeled"1" at the marker at the top of the wheel.
A car is traveling at 27 m/s when the driver spots a large pothole in the road a distance 44 m ahead. She immediately applies her brakes. If her acceleration is -9.7 m/s2, does she arrange to stop before reaching the pothole.
a 15 g lead bullet traveling at 240ms passes through a thin wall and emerges at a speed of 160ms . if the bullet
The outside mirror on the passenger side of a car is convex and has a focal length of -7.7 m. Relative to this mirror, Find the image distance of the truck.
Assuming that the smallest discernable and measurable relief displacement that is possible on a vertical photograph taken at 3000 feet above the ground is 0.5 mm; determine the height of a telephone utility box
An unstable high-energy particle is created in the laboratory, and it moves at a speed of 0.950c.Relative to a stationary reference frame fixed to the laboratory, the particle travels a distance of 1.34*10-3 m before disintegrating.
A uniform brass disk of radius R and mass M with a moment of inertia I about its cylindrical axis of symmetry is at a temperature T = 37 °C. Determine the fractional change in its moment of inertia
What is the angle (in degrees) between the red and blue light as it leaves the prism?
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