To determine the pressure in units of kPa, we need to use a conversion factor to convert the units from mmHg to kPa. A conversion factor is a value that would relate two different units and is multiplied or divide to the original measurement depending on what is units is asked. From literature, 1 atm is equal to 760 mmHg and it is also equal to 101.325 kPa. We use these factors to convert the given value. We do as follows:
2150 mmHg ( 1 atm / 760 mmHg ) ( 101.325 kPa / 1 atm ) = 286.643 kPa
Therefore, the closest value from the choices is the second one which has the value of 287, this would be answer.
Elements in the same group on the periodic table have the same number of valence electrons. The "groups" are the column (or rows). groups are vertically and periods are horizontally.
Answer:
<em>Option 'D' is correct.</em>
Step-by-step explanation:
Since we have given that
We will first find the "Discrimination":
Since discriminant is less than 0 i.e. D<0.
So, there will no real roots.
Hence, D = -28 and there is no real roots.
Therefore, Option 'D' is correct.
Explanation:
I would say that photon is a subatomic particle of light.
The answer is b. wavelength only
