Which of the following energy sources is in no way derived from the Sun?
2 answers:
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Answer:
"13.48 Kwhr" is the right solution.
Explanation:
The given values are:
Average rate of heat energy,
= 0.063 W/m²
Diameter,
= 8m
Efficiency of conversion,
= 50%
Now,
The area of hotspot will be:
⇒
On substituting the values, we get
⇒
⇒
⇒
Total heat generation rate will be:
⇒
hence,
The electricity generation capacity will be:
⇒
On substituting the values, we get
⇒
⇒
On converting into Kwhr, we get
⇒
Answer:
hydrogen
Explanation:
pH is a measure of the ion concentration of hydrogen in a solution.
In chemistry, it literally means power of hydrogen ions and it is a measure of the molar concentration of hydrogen ions in a particular solution, thus specifying the acidity, neutrality or basicity of chemical solutions.
Mathematically, the pH of a solution is given by
Hence, a solution with a pH of 7 is neutral.
Also, a solution with a pH below 7 is acidic but basic if it's pH is above 7.