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enyata [817]
3 years ago
11

During an experiment, distilled water was placed in a sealed container and the container was heated gradually. Describe this sys

tem when it reaches phase equilibrium. (10 points)
Chemistry
1 answer:
Bumek [7]3 years ago
6 0

Explanation:

At first, the container just contains a liquid phase. As the temperature rises, so does the pressure, as well as a liquid-vapor phase equilibrium is created. If we heat it past boiling point, it reaches the crucial stage at 3740C and 217.7 atm pressure, when the border between the two phases vanishes and just a single phase remains, known as liquid phase.

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g A spontaneous process is one in which: A. releases a large amount of heat B. may happen (is possible) C. will rapidly approach
katrin2010 [14]

Answer:

A. releases a large amount of heat

Explanation:

A reaction is said to be spontaneous if it can proceed on its own without the addition of external energy. A spontaneous reaction is not determined by the length of time, because some spontaneous reactions are completed after a long period of time. They are exothermic in nature. An example is the conversion of graphite to carbon which takes a long period of time to complete. Spontaneous reactions are known to increase entropy in a system. Entropy is the rate of disorder in a system.

In the combustion of fire, energy is released to the surroundings as there is a decrease in energy. This is an example of a spontaneous reaction because it is an exothermic reaction, which causes an increase in entropy and a decrease in energy.

7 0
3 years ago
What two forces cause the arc-shape of projectile motion?
Talja [164]
Forces along the horizontal
force that caused initial velocity in x-dir
force that caused final velocity in x-dir


forces along the vertical
force that caused initial velocity in y-dir
force that caused final velocity in y-dir
force of gravity
4 0
2 years ago
What is the mass of 2.50 moles of potassium chlorate in grams
Sedaia [141]

Answer: 306 grams are there in 2.50 moles of potassium chlorate

Explanation

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

given mass of potassium chlorate = ?

Molar mass of potassium chlorate = 122.55 g/mol

Putting in the values we get:

2.50=\frac{xg}{122.55g/mol}

x=2.50mol\times 122.55g/mol=306g

306 grams are there in 2.50 moles of potassium chlorate

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What would happen if we did not have blood banks today
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3 years ago
During which phase of the moon do spring tides typically occur
avanturin [10]
Spring tides occur during the fullmoon and the new moon
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