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,

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

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

Hence, this system has 3 triple points.
In an exothermic reaction heat is released by a chemical reaction. In an endothermic reaction heat is absorbed by a chemical reaction.
The reaction between ammonium nitrate and water absorbs heat from the surrounding environment. Endothermic Reaction
Three drops of concentrated sulfuric acid added to 100 milliliters of water in a beaker makes the beaker hot. Exothermic Reaction
Ammonium chloride dissolved in a beaker of water makes the beaker cold. Endothermic Reaction
Uranium atoms are split to produce nuclear energy. Exothermic Reaction
Water separates into hydrogen and oxygen when an electric current is run through it. Endothermic Reaction
Methane and oxygen are combined to produce methanol and heat. Exothermic Reaction
Explanation:
Percentage Yield = (175/250) * 100% = 70.0%.
The time taken for Hydrogen-3 to decay from 88 g to 11 g is 36.9 years.
<h3>Half-life:</h3>
This can be defined as the time taken for half the sample of a substance to decay or disintegrate
To calculate the time it will take Hydrogen to decay from 88g to 11 g we use the formula below.
Formula:
- R = R'(
)................ Equation 1
Where:
- R = Original sample of Hydrogen
- R' = Sample of Hydrogen left after decay
- T = Total time of decay
- n = Half-life of hydrogen.
From the question,
Given:
- R = 88 g
- R' = 11 g
- n = 12.3 years.
Substitute these values into equation 1
- 88 = 11(
)
Solve for T.
= 88/11
= 8
= 2³................ Equation 2
Equating the base in equation 2 above,
- T/12.3 = 3
- T = 12.3×3
- T = 36.9 years.
Hence, the time taken for Hydrogen-3 to decay from 88 g to 11 g is 36.9 years
Learn more about half-life here: brainly.com/question/11152793
C18H24N2O6 is the chemical formula