Question
In: Physics
Suppose that the Earth was thermally insulated from the rest of the universe so that it...
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Suppose that the Earth was thermally insulated from the rest of the universe so that it was an isolated system. Describe the entropy of the Earth as a function of time.
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Consider taking two identical ice cubes out of the freezer. You place one in a cup and let it melt; you take the other and smash it with a hammer and then put it in an identical cup and allow it to melt. Compare the entropy changes of the two ice cubes.
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Upon freezing, water becomes more orderly and its entropy decreases. Explain why this process does not violate the second law of thermodynamics.
Solutions
genius_generous answered 8 months agoRelated Solutions
Two identical objects, A and B, are thermally and mechanically isolated from the rest of the...
Two identical objects, A and B, are thermally and mechanically
isolated from the rest of the world. Their initial temperatures are
TA > TB. Each object has heat capacity C (the same for both
objects) which is independent of temperature. (a) Suppose the
objects are placed in thermal contact and allowed to come to
thermal equilibrium. What is their final temperature? How much
entropy is created in this process? How much work is done on the
outside world in this...
Two identical objects, A and B, are thermally and mechanically isolated from the rest of the...
Two identical objects, A and B, are thermally and mechanically
isolated from the rest of the world. Their initial temperatures are
TA > TB. Each object has heat capacity C (the same for both
objects) which is independent of temperature.
(a) Suppose the objects are placed in thermal contact and allowed
to come to thermal equilibrium. What is their final temperature?
How much entropy is created in this process? How much work is done
on the outside world in this...
An insulated cylinder is initially divided into halves by a frictionless, thermally conducting piston. On one...
An insulated cylinder is initially divided into halves by a
frictionless, thermally conducting piston. On one side of the
piston is 1 m3 of a gas at 300 K, 2 bar. On the other
side is 1 m3 of the same gas at 300 K, 1 bar.The piston
is released and equilibrium is attained, with the piston
experiencing no change of state. Employing the ideal gas model for
the gas, determine
(a) the final temperature, in K.
(b) the final...
An insulated cylinder is initially divided into halves by a frictionless, thermally conducting piston. On one...
An insulated cylinder is initially divided into halves by a
frictionless, thermally conducting piston. On one side of the
piston is 1 m3 of a gas at 300 K, 2 bar. On the other side is 1 m3
of the same gas at 300 K, 1 bar.The piston is released and
equilibrium is attained, with the piston experiencing no change of
state. Employing the ideal gas model for the gas, determine
(a) the final temperature, in K.
(b) the final...
A vessel whose walls are thermally insulated contains 2.20 kg of water and 0.450 kg of...
A vessel whose walls are thermally insulated contains 2.20 kg of
water and 0.450 kg of ice, all at a temperature of 0.0 ∘C. The
outlet of a tube leading from a boiler in which water is boiling at
atmospheric pressure is inserted into the water.
Part A
How many grams of steam must condense inside the vessel (also at
atmospheric pressure) to raise the temperature of the system to
25.0 ∘C ? You can ignore the heat transferred to...
A 29.5g ice cube at -10 degrees celsius is place in a thermally insulated container along...
A 29.5g ice cube at -10 degrees celsius is place in a thermally
insulated container along with 1.000kg of water initially at 20.0
degrees celsius. determine the final temperature of the system and
the amount of heat acquired by the ice during the process and the
amount of heat lost by the warm water. PLEASE SHOW WORK AND
EQUATIONS USED. I'm struggling to find equations for heat gained,
lost, and final temp. thank you.
An object is at rest on the ground. The object experiences a downward gravitational force from Earth.
An
object is at rest on the ground. The object experiences a downward
gravitational force from Earth. Which of the following predictions
is correct about why the object does not accelerate downward?
Select two answers. Justify your selections.A) The bonded molecules of the object are repelled upward by
the bonded molecules of the ground with the same magnitude as the
gravitational force downward on the object.B)The normal force is exerted upward on the object from the
ground with the same...
The Andromeda galaxy is two million light-years from Earth, measured in the common rest frame of...
The Andromeda galaxy is two million light-years from Earth,
measured in the common rest frame of Earth and Andromeda. Suppose
you took a fast spaceship to Andromeda, so it got you there in 35
years as measured on the ship. If you sent a radio message home as
soon as you reached Andromeda, how long after you left Earth would
it arrive, according to timekeepers on Earth?
My
A rocket of rest length 90 meters is traveling at speed 4/5c directly away from earth....
A rocket of rest length 90 meters is traveling at speed 4/5c
directly away from earth. The rocket encounters an asteroid of
length 80 meters also travelling directly away from the earth but
at speed 3/5c.
a)According to the captain of the rocket, what is the velocity
of the rocket relative to the asteroid?
b)At the front of the rocket, the captain of the rocket becomes
aware of the asteroid and activates a warning signal. It takes one
hour before...
A measure in which the reference system, which is the Earth is at rest is done....
A measure in which the reference system, which is the Earth is
at rest is done. A spaceship traveling 0.0964c 11.2y takes to
travel between planets. How long do you think someone is inside the
spaceship that was the trip?
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