The continued growth in the Himalayas<span> is likely due to the Indian tectonic plate </span>still<span>moving slowly but surely northward. We know the plate is </span>still<span> moving in part because of the frequent earthquakes in the region
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Answer:
4.993 ×10⁻¹¹ J
Explanation:
The <em>nuclear binding energy</em> is the energy equivalent to the mass defect.
The <em>mass defect</em> is the difference between the mass of a nucleus and the sum of the masses of its nucleons.
<em>Calculate the mass defect
</em>
16 p = 16 × 1.007 28 u = 16.116 48 u
16 n = 16 × 1.008 67 u = 16.138 72 u
Total mass of nucleons = 32.255 20 u
- Mass of S-32 = <u>31.972 070 u
</u>
Mass defect = 0.283 13 u
Convert the <em>unified atomic mass units to kilograms</em>.
Mass defect


Use Einstein’s equation to <em>convert the mass defect into energy</em>


We have to know the molarity of solution obtained when 5.71 g of Na₂CO₃.10 H₂O is dissolved in water and made up to 250 cm³ solution.
The molarity of solution obtained when 5.71 g of sodium carbonate-10-water (Na₂CO₃.10 H₂O) is dissolved in water and made up to 250.0 cm^3 solutionis: (A) 0.08 mol dm⁻³
The molarit y of solution means the number of moles of solute present in one litre of solution. Here solute is Na₂CO₃.10 H₂O and solvent is water. Volume of solution is 250 cm³.
Molar mass of Na₂CO₃.10 H₂O is 286 grams which means mass of one mole of Na₂CO₃.10 H₂O is 286 grams.
5.71 grams of Na₂CO₃.10 H₂O is equal to
= 0.0199 moles of Na₂CO₃.10 H₂O. So, 0.0199 moles of Na₂CO₃.10 H₂O present in 250 cm³ volume of solution.
Hence, number of moles of Na₂CO₃.10 H₂O present in one litre (equal to 1000 cm³) of solution is
= 0.0796 moles. So, the molarity of the solution is 0.0796 mol/dm³ ≅ 0.08 mol/dm³
Answer:4
Explanation:
As shown in the image attached, a face-centred cubic structure has 8 atoms at the corners and 6 face center atoms.
Each corner atom contributes to eight cell, so per unit cell 1/8 ×8 =1atom
Face center atoms contributes to two unit cells 1/2 × 6=3atoms
Total atoms =3+1=4atoms
Therefore the atoms in Al FCC per unit cell is 4
Answer:
a
Explanation:
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