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3 years ago

How many triple points are in the phase diagram below:

Chemistry

1 answer:

solong [7]3 years ago

5 0

Answer: There are 3 triple points in the given phase diagram.

Explanation: Triple point is defined as the point at which the temperature and pressure of the 3 phases are in equilibrium with each other.

In the given phase diagram, there are three points which is satisfying this definition.

Point A: At this point The monoclinic form and rhombic form have the same vapor pressure. Hence,

$Rhombic(s) \rightleftharpoons Monoclinic(s) \rightleftharpoons Vapor(g)$

Point B: At this point, the monoclinic form starts to melt. Hence,

$Rhombic(s) \rightleftharpoons Liquid(l) \rightleftharpoons Vapor(g)$

Point C: At this point, the rhombic form, monolinic form and liquid is in equilibrium. Hence,

$Rhombic(s) \rightleftharpoons Monoclinic(s) \rightleftharpoons Liquid(l)$

Hence, this system has 3 triple points.

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Which property do metalloids share with non metals?

mamaluj [8]

Answer:

their ability to conduct heat and electricity.

Explanation:

6 0

3 years ago

Zinc phosphide, Zn3P2, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each z

Helen [10]

The choices that should have accompanied this question were:
A. 1
B. 2 
C. 3 
D. 4

My answer is B. 2.
Below is an explanation, I found while doing the research.

Phosphate needs 3 electrons each totaling 6 electrons so each zinc will need to give up 2 electrons.

Phosphate wants to imitate the electron configuration of Argon because noble configurations are the most stable. With P getting the extra electrons the valence shell will be 3s2 3p6, which is the same as Argon. Without the extra electrons, the P valence shell looks like this 3s2 3p3, now you can see why each phosphorus wants 3 more electrons, that will make it 3s2 3p6, just like Argon.

8 0

2 years ago

Read 2 more answers

A balloon is filled to a volume of 700 mL at a pressure of 1.2 atm. The volume is increased 950 ml, what will be the new pressur

konstantin123 [22]

P1V1 = P2V2

1.2ATM*(.7 L) = V2 * .95L

V2 = 0.884 Liters or 884.21 ml

3 0

2 years ago

A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two grou

alexandr1967 [171]

Answer:

The population of the long-legged birds decreases.

Explanation:

The population of the short-legged birds increases whereas the population of long-legged birds decreases due to availability of food in that environment. The long-legged birds feed on fish whose population decreases due to drought conditions so the population of long-legged birds also decreases while on the other hand, the population of short-legged birds increases or remain the same because they feed on the insects and the insects are available in large amount and less affected by the drought conditions.

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2 years ago

Is 6.0 × 10 to the negative 4th power is a significant figure?

Dmitry_Shevchenko [17]

Answer:

Yes

Explanation:

First remember that a significant figure are basically values that contribute to the precision of a value. In any scientific notation the values are significant figures because these values stay the same. In this case we have two significant figures which is 6 and 0, you can further prove that they are significant figures by converting the notation into standard form.

$6.0\times10^{-4}$

Negative so move the decimal point to the left:

$=0.00060$

6 and 0 are the significant figures in this standard notation because it's precise to it's actual value which is 6.0.

To sum up, the values you have on the left side of a notation are significant figures since they will not change no matter if it's standard or scientific notation meaning it's precise.

Hope this helps.

6 0

2 years ago