There are three perfect squares in a standard die; 1, 2, 4. If there is two standard dies, then the probability of getting a perfect square is 1/3 x 1/3 = 1/9.
There are 4 numbers less than 5 in a standard die, making it 1/4 x 1/4=1/16.
Answer:
C. P = nRT
Explanation:
PV = nRT, where n is a number of moles and R is the universal gas constant, R = 8.31 J/mol ⋅ K.
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Answer:
P' = 41.4 mmHg → Vapor pressure of solution
Explanation:
ΔP = P° . Xm
ΔP = Vapor pressure of pure solvent (P°) - Vapor pressure of solution (P')
Xm = Mole fraction for solute (Moles of solvent /Total moles)
Firstly we determine the mole fraction of solute.
Moles of solute → Mass . 1 mol / molar mass
20.2 g . 1 mol / 342 g = 0.0590 mol
Moles of solvent → Mass . 1mol / molar mass
60.5 g . 1 mol/ 18 g = 3.36 mol
Total moles = 3.36 mol + 0.0590 mol = 3.419 moles
Xm = 0.0590 mol / 3.419 moles → 0.0172
Let's replace the data in the formula
42.2 mmHg - P' = 42.2 mmHg . 0.0172
P' = - (42.2 mmHg . 0.0172 - 42.2 mmHg)
P' = 41.4 mmHg
The source of the forces that move the tectonic plates along this plate
boundary is the convection current in the mantle. Hence, the correct
option in option (B)
<h3>What are Tectonic plates ?</h3>
Tectonic plates refers to the Spheres that are found in the uppermost Mantle of the Earth .
The Tectonic plates are also called the Litosphere .
The Motion of the Plates about the axis causes the Tectonic demarcations which are Know as the
Convergent
Divergent
Transform
Now these Plate are formed by the Convection of Currents in the Earths's Mantle
That is, the Dynamics of Current in and around the Earths Mantle brings about the tectonic plates
Hence the the correct option in option (B)
Learn more about tectonic plates Here ;
brainly.com/question/15476626
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