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Natali5045456 [20]
3 years ago
11

How much kinetic energy does a system containing 5 moles of an ideal gas at 300.00 K possess? (decimal only)

Physics
1 answer:
maks197457 [2]3 years ago
8 0

Answer:

K=18.70kJ

Explanation:

The kinetic energy of an ideal gas is defined as:

K=\frac{3}{2}nRT

Here n is the number of moles of the gas, R is the ideal gas constant and T is the temperature of the gas. So, replacing the given values, we get the kinetic energy of the system:

K=\frac{3(5mol)(8.31\frac{J}{mol\cdot K})(300K)}{2}\\K=18697.5J=18.70kJ

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Monochromatic light of wavelength 580 nm passes through a single slit and the diffraction pattern is observed on a screen. Both
Nuetrik [128]

Answer:

Part a)

Width of the slit is

a = 580 nm

Part b)

Ratio of intensity is given as

\frac{I}{I_o} = 0.81

Explanation:

Part a)

As we know by the formula of diffraction we will have

a sin\theta = \lambda

so we have

\theta = 90

\lambda = 580 nm

so we will have

a sin90 = 580 nm

a = 580 nm

Part b)

As we know that the intensity in diffraction pattern is given as

I = I_o (\frac{sin\theta}{\theta})^2

\frac{I}{I_o} = (\frac{sin\theta}{\theta})^2

so for angle 45 degree

\frac{I}{I_o} = (\frac{sin45}{\pi/4})^2

\frac{I}{I_o} = (\frac{sin45}{\pi/4})^2

\frac{I}{I_o} = 0.81

7 0
4 years ago
The farther apart elements are on the periodic table the more likely they are to form_____bonds.
irga5000 [103]
The answer is A, ionic bonds. Hope this helped you 

4 0
3 years ago
Why would it be desirable to use an energy resource that does not produce greenhouse gases?
Art [367]

C. Greenhouse gases contribute to climate change

Explanation:

It is desirable to use an energy source that does not produce greenhouse gases because these gases contributes a whole lot to climate change.

Over the years, studies have shown that the primary use of fossil fuels have significant lead to changes in the climate.

  • Greenhouse gases are produced during the combustion of fossil fuels.
  • The most important gas produced in this process is the carbon dioxide.
  • The greenhouse gases prevents long range radiation from leaving the earth.
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Learn more:

Greenhouse gases brainly.com/question/4580761

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<span>The polarity of a water molecule comes from the uneven distribution of electron density of hydrogen and oxygen atom. The oxygen in the water molecule is more electronegative than the hydrogen. Water has a <u>partial positive charge near the hydrogen atom and a partial negative charge near the oxygen atom</u>. The result of this electrostatic attraction results in the bond called hydrogen bond. Also, because of this bond, it has the ability to dissolve most of the solutes due to its polarity and bonding.</span>
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4 years ago
Write three things that
Mars2501 [29]
1. A lamp can transfer energy through light and thermal energy, fire, and a radiator.
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