Answer: 4 herz is the answer!
Explanation:
B. We can see only one side of the Moon from Earth.
( we only see one side of the moon because the moon rotates around the Earth)
The amount of heat in the body in joule
B.absorb neutrons to prevent chain reactions which become uncontrollable
Answer:

Explanation:
According to given:
- molecular mass of glycerin,

- molecular mass of water,

- ∵Density of water is

- ∴mass of water in 316 mL,

- mass of glycerin,

- pressure of mixture,

- temperature of mixture,

<em>Upon the formation of solution the vapour pressure will be reduced since we have one component of solution as non-volatile.</em>
<u>moles of water in the given quantity:</u>



<u>moles of glycerin in the given quantity:</u>



<u>Now the mole fraction of water:</u>



<em>Since glycerin is non-volatile in nature so the vapor pressure of the resulting solution will be due to water only.</em>


