Total heat change for this process is 8.70 kJ.
Q = mcΔT, where Q is the symbol for heat transfer, m is the mass of the substance, and ΔT is the change in temperature. The symbol c stands for specific heat and depends on the material and phase.
The ice will be warmed from -6.5 ºC to OºC where it will melt.
Lets q1 be the heat required to bring the ice to 0ºc, q₂ the heat required to bring the phase change from solid to liquid.
Given,
Mass of ice = 25 g
Change in temperature t = (0-(-6.5)) *C
Specific heat = 2.09 J/g *C
For heat q1 = m x c x t
= 25 g x 2.09 J/g C x 6.5
=339.626 J = 0.339 kJ
q2 = n x t (no of moles) x (molar heat of fusion of water)
= 25/18 mol x 6.02 kJ/mol
= 1.39 x 6.02 = 8.36 kJ
Total heat = q1 + q2
=8.36 + 0.339 = 8.70 kJ
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The answer is:
True
The explanation:
- when we conserving water the people will get a lower water bills and will receive a lower energy and water waste bills. So you can save your money.
- and when we conserving water you protect the environment and all the marine organisms life like fishes. and we will find the good water which we need for our life and protect the animal and plants life and fill its needs.
<span>The ammonia molecules have weaker inter molecular bonds then the hydrogen and nitrogen, this means that the ammonia condensed at a lower temperature so will be a liquid that will be separated from the reaction, while the nitrogen and hydrogen remain as gases so are easy are recycle back into the reacting chamber.</span>
Answer:
3,855.532 grams
Explanation:
1 pound = 453.592 grams
8.50 = ? grams
--> 8.50 * 453.592 = 3,855.532 grams.
