Answer:
The temperature associated with this radiation is 0.014K.
Explanation:
If we assume that the astronomical object behaves as a black body, the relation between its <em>wavelength</em> and <em>temperature</em> is given by Wien's displacement law.
where,
λmax is the wavelength at the peak of emission
b is Wien's displacement constant (2.89×10⁻³ m⋅K)
T is the absolute temperature
For a wavelength of 21 cm,
We know that
1 calorie = 4.184 Joules
so let us convert the joules to calories first
1 Joule = 1 / 4.184 Cal
150000 = 150000 / 4.184 Cal = 35850.86 Cal
Now in case of food articles
one calorie = 1 Kcal
Therefore on food label it will = 35.851 Cal
Answer:
Answer is given below.
Explanation:
<em />
<em>Alkalinity = 400 mg/L in terms of CaCO3 </em>
<em>a.) Total Hardness is defined as the sum of calcium and magnesium iion concentration in terms of CaCO3
</em>
<em>
</em>
<em>Total Hardness = [Ca+2]*{50/20) + [Mg+2]*{50/12) = [200]*{50/20) + [60]*{50/12) = 750 mg/L in terms of CaCO3
</em>
<em>
</em>
<em>b.) Non-Carbonate hardness = Total Hardness - Carbonate Hardness
</em>
<em>
</em>
<em>Now here as the Total Hardness is greater than alkalinity ,Thus
</em>
<em>
</em>
<em>Carbonate Hardness = Alkanlinity = 400 mg/L in terms of CaCO3
</em>
<em>
</em>
<em>Non-Carbonate hardness = 750 - 400 = 350 mg/L in terms of CaCO3
</em>
<em>
</em>
<em>c.) As Total hardness is greater than Alkalinity thus Carbonate hardness is equal to the Alkalinity.
</em>
<em>
</em>
<em>Carbonate hardness = 400 mg/L in terms of CaCO3
</em>
<em>
</em>
<em>d.) Now as the Total hardness of the ground water is more than 180 mg/L,Thus it needs removal of hardness.
</em>
<em>
</em>
<em>There are many treatment options for the removal of hardness:
</em>
<em>i) Ion Exchange method
</em>
<em>ii) Lime soda method</em>
X represent halogen atom bonded to a saturated c atom
So the answer is letter b
Answer:
2AgNO³(l) → 2Ag(s) + O²(g) + 2NO²(g)
Explanation:
I used powers ³,²,²
So change them to be down
