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shutvik [7]
2 years ago
12

True or false: a probability contour represents a bounded, finite volume about a nucleus in which there is a substantial probabi

lity of finding the electron.
Physics
1 answer:
erastovalidia [21]2 years ago
7 0

A probability contour represents a bounded, finite volume about a nucleus in which there is a substantial probability of finding the electron is TRUE.

The rectangular of the wave characteristic, ψ2 , represents the opportunity of locating an electron in a given vicinity within the atom. probability finding electron at nucleus is zero.

An orbital is a mathematical feature that has a fee at all points in space. The magnitude squared of that fee is the chance according to volume of locating an electron in that volume of area.

The probability of locating electron in nodes is 0, but there are electron densities on all round nodes. The node is a point or a floor (relying at the type of node) so the volume of the vicinity wherein ψ=zero is zero. we want to position V=zero and we get P=zero so the chance of finding the electron on the node is zero.

Learn more about electron here:-brainly.com/question/860094

#SPJ4

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How much heat is needed to raise the temperature of 4.68kg of lead from 25.0c to 62.0
qwelly [4]

Answer:

22510.8J

Explanation:

Given parameters:

Mass of lead  = 4.68kg

Initial temperature  = 25°C

Final temperature  = 62°C

Unknown:

The heat needed to cause this temperature change = ?

Solution:

To solve this problem, we use the expression below:

       H = m c Ф  

H is the quantity of heat

m is the mass

c is the specific heat capacity

Ф is the temperature change

   So;

 Specific heat capacity of lead  = 130J/kg°C

 Insert the parameters and solve;

   H = 4.68 x 130 x (62 - 25) = 22510.8J

6 0
3 years ago
An ideal gas is brought through an isothermal compression process. The 3.00 mol 3.00 mol of gas goes from an initial volume of 2
ozzi

Answer:

The answers can be found by considering the isothermal expansion equation as well as the ideal gas equation from where we have

The temperature T = 602.64K and the final pressure P = 110.24MPa

Explanation:

Numbeer of moles of gas = 3.00 mol  

initial volume = 230.8×10−6 m3  

final volume = 133.4×10−6 m3 .

released energy =  8240 J

Temperature = Constant = T

Pressure =  p_{f} =unknown

From the relation the combined ideal gas law, PV = nRT

Where R = 8.314 4621.JK−1mol−1

we have The release energy from compression P1V1 -P2V2

-qrev = -nRTln(\frac{V_{2} }{V_{1} }) = 8240J

n = 3

Hence -nRTln(\frac{V_{2} }{V_{1} }) =  3×8.314 462×ln(\frac{133.4}{230.8}) × T=  -8240 J

or -13.67×T = -8240J, thus T = -8240/-13.67 = 602.64K

The Final pressure is given by

PV = n×R×T from where we have V = final volume thus

P = (n×R×T)/V = (3×8.134×602.64)÷(133.4×10^{-6}) = 110237041.1 N/m^{2} = 110.237MPa

8 0
3 years ago
You nose out another runner to win the 100.000m dash. If your total time for the race was 11.8 seconds and you aced out the othe
daser333 [38]
You completed 100.000 m in 11.800 second

you aced out the other runner by 0.001 seconds

time taken by other runner to finish = 11.800 + 0.001 = 11.801s

speed of other runner = 100/11.801 m/s

distance covered by him in 11.8 s = 100/11.801 × 11.8 = 99.992 m

you won by = 100 - 99.992 = 0.008 meter
3 0
4 years ago
As the mass and distance between two objects decrease, so does the gravitational force exerted between them. true or false
marta [7]
I believe it's true,..hope this helps!

7 0
3 years ago
A(n) ________ describes the shape of a planet’s orbital path. astronomical unit
sleet_krkn [62]
It is an ellipse. 

Hope this helps!
8 0
3 years ago
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