Why is temperature constant during a phase change?

1 answer:

8 0

Because during a phase change nothing really happens. Before a phase change, energy and temperature will increase or decrease as well as after.

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Which of the following systems possesses the highest entropy? A new pack of playing cards, unopened and unshuffled A pack of pla

ludmilkaskok [199]

Answer:

Playing cards in hand and in use.

Explanation:

Using the entropy as the measure of the unpredictability of the state. The higher the unpredictability the higher the entropy. When a new deck remains unshuffle, all the cards are in order, is easy to predict the card that you will get if you take an Ace the next card will be a Two. The entropy is low. When you shuffle the cards the entropy increased, it becomes more difficult to guess which card you will find after taking out an Ace. After you shuffle the cards and give cards to each player, predicting who has which card is even more difficult, therefore this is the system with the greatest entropy.

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4 years ago

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Which weather event is capable of destroying homes and uprooting trees due to a low-pressure area at its center generating winds

gtnhenbr [62]

Answer:

A tornado is capable of doing this

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3 years ago

Can some help me, please?

cestrela7 [59]

Answer:

1. Transform Boundary

2. Continental-continental convergent boundary

3. Oceanic-Oceanic Divergent boundary

Explanation:

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3 years ago

Katelyn (55 kg) is practicing a drop jump in the biomechanics lab. She steps off a plyometrics box, lands on the force plate, an

suter [353]

Answer:

J = 357.5 kg*m/s

Explanation:

The impulse exerted on Katelyn when she was on the force plate, is equal to the change in her momentum, according to Newton's 2nd Law.
Assuming as the positive direction the upward direction (coincident with the positive y-axis) we can express the initial momentum as follows:

$p_{o} = m*v_{o} = 55 kg * (-3.0 m/s) (1)$