if the pressure of a gas at constant volume is 3.5 atm at 100°c, what will the pressure be if the tempature is changed to 250°c?

Ber [7]

Explanation:

So what do you wanna know? The definition?

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals. For example, the electron configuration of the neon atom is 1s² 2s² 2p⁶, using the notation explained below.

3 0

3 years ago

The 235U isotope (atomic mass = 235.00) undergoes fission when bombarded with neutrons. However, its natural abundance is only 0

Marianna [84]

Answer:

So ²³⁵UF₆ effuses 1.0043 times faster than ²³⁸UF₆

Explanation:

The rate of effusion of two gases A and B can be expressed by <em>Graham's law</em>:

$\frac{EffusionRateA}{EffusionRateB}=\sqrt{\frac{M_{B}}{M_{A}} }$

Where M is the molar mass, and in this case A is ²³⁵UF₆ while B is ²³⁸UF₆.

So now we <u>calculate the molar mass of each mass</u>:

²³⁵UF₆ ⇒235 + 6*19 = 349 g/mol

²³⁸UF₆ ⇒238 + 6*19 = 352 g/mol

Putting the data in Graham's law:

$\frac{Rate^{235}UF_{6}}{Rate^{238}UF_{6}}=\sqrt{\frac{352}{349} }$ = 1.0043

So ²³⁵UF₆ effuses 1.0043 times faster than ²³⁸UF₆.

4 0

3 years ago

The graph above shows the distribution of molecular speeds for four different gases at the same temperature. What property of th

Eduardwww [97]

Answer:

The correct option is;

D.) The molecular masses of the gases, because the gas molecules have the same average kinetic energy and mass can be calculated using the equation, $KE_{avg} = \dfrac{1}{2} \times m \times v^2$

Explanation:

The graph shows the proportion of the atoms of each gas have a given velocity

The given parameters of the graphs are;

The dependent variable of the graph = The number of molecules

The independent variable = The molecular speed (m/s)

The temperature of the gases = The same temperature

$v_{rms} = \sqrt{\dfrac{3 \cdot R \cdot T}{MW} }$

Therefore, from the above equation, at constant temperature, the root mean square velocity varies inversely as the molecular weight

Similarly from the kinetic energy equation, we have;

$KE_{avg} = \dfrac{1}{2} \times m \times v^2$

Whereby, the energy contained in each of the four gas are the same, we have;

For increasing molecular mass by a factor of 2, the velocity decreases by a factor of 4.

8 0

3 years ago

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Is primarily responsible for acid rain in the northeast United States Uranium-238 Answer A: Uranium-238 A Coal Answer B: Coal B

Georgia [21]

Based on the available facts, in the northeast United States, the biggest source of acid rain producing pollutants comes from the burning of coal by power plants to produce electricity.

Acid rain occurs when gases such as sulfur (iv) oxide and nitrogen oxides which are released from the burning of fossil fuels such as petrol and coal are released into the atmosphere, which then dissolve in rainwater and fall as acid rain.

These gases are known as acid anhydrides because they dissolve in water to produce acids.

In the northeast United States, the biggest source of acid rain producing pollutants comes from the burning of coal by power plants to produce electricity.

Learn more about acid rain at: brainly.com/question/718250

3 0

3 years ago

An atom of boron has an atomic number of 5 and an atomic mass of 11. The atom contains:. . A. 5 protons, 6 electrons, and 5 neut

Mars2501 [29]

<span>C. 5 protons, 5 electrons, and 6 neutrons</span>

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3 years ago

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