The heat required to convert water is given as the product of the mas and the latent heat. 28.34 kJ heat must be removed from the water to change it into ice.
<h3>What is heat energy?</h3>
Heat energy is the product of mass, specific heat capacity, and temperature change. It is given as,
![\rm Q = mc \Delta T](https://tex.z-dn.net/?f=%5Crm%20Q%20%3D%20mc%20%5CDelta%20T)
Given,
Mass of water = 456 gm
Specific heat capacity = 4.186 J / g K
Temperatutre change = 14.85 K
Substituting values above:
![\begin{aligned} \rm Q &= 456 \times 4.186 \times 14.85\\\\&= 28345.91\;\rm J\\\\&= 28.34\;\rm kJ\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D%20%5Crm%20Q%20%26%3D%20456%20%5Ctimes%204.186%20%5Ctimes%2014.85%5C%5C%5C%5C%26%3D%2028345.91%5C%3B%5Crm%20J%5C%5C%5C%5C%26%3D%2028.34%5C%3B%5Crm%20kJ%5Cend%7Baligned%7D)
Therefore, 28.34 kJ of heat energy should be removed from the water.
Learn more about the heat here:
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The gas is NH₃.
H₂ doesn't dissolve readily in water, SO₂ gives an acidic solution in water.
The solid residue is Fe(OH)₂.
FeSO₄ and Na₂SO₄ are soluble in water.
The answer is C.
Option C. The object is returning to the start at a constant speed.
<h3>
Data points of the Position vs Time graph</h3>
The following data points will be used to determine the motion of the object.
<u>Position Time</u>
12 4
10 6
2 8
0 10
From the data above, the position of the object is decreasing towards zero or start point.
Thus, the object is returning to the start at a constant speed.
Learn more about position here: brainly.com/question/2364404
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