Protons in 5 grams of water carry a charge of 2.68 × 10⁵ C.
<h3>Explanation</h3>
How many <em>moles</em> of protons in 5 grams of water?
The mass of one mole of water H₂O is (2 × 1.008 + 16.00) = 18.02 grams. There are 5 / 18.02 = 0.2775 moles of water molecules in 5 grams of water.
- Each H atom contains one proton.
- Each O atom contains eight protons.
As a result, each H₂O molecule contains 2 × 1 + 8 = 10 protons. 0.2775 moles of water molecules will contain 10 × 0.2775 = 2.775 moles of protons.
What's the <em>charge</em> in <em>coulombs</em> on 2.775 moles of proton?
Each mole of electrons carry one Faraday of charge. Each electron carries the same amount of charge as each proton. As a result, each mole of protons will also carry one Faraday of charge. There are 2.775 Faradays of charge on the same number of moles of protons.
There are 96485.333 coulombs in each Faraday of charge. There will be 2.775 × 96485.333 = 2.68 ×10⁵ coulombs in 2.775 Faradays of charge. As a result, protons in 5 grams of water will carry a charge of 2.68 × 10⁵ coulombs.
To solve the problem it is necessary to apply the concept of Load on capacitors. The charge Q on the plates is proportional to the potential difference V across the two plates.
It can be mathematically defined as:
Q= CV
Where,
C = Capacitance
V = Voltage
Our values are given as,
Substituting values in the above formula, we get
Where
Therefore the charge must be 18pC to create a 30V Poential difference.
we know that electromagnetic waves travels faster through the gas than a solid as they do not need medium to travel.
x-ray sis used in taking images of bones in medical field.
since x-ray is an electromagnetic wave , it travels at the speed of 300,000,000 m/s through space
The above mentioned characteristics belongs to x-ray. hence the correct choice is X-ray
Look on this website http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/sinslit.html