"For a many-electron atom, which of the following sublevels has the highest energy? A. 3p. B. 3d. C. 3s. D. 4s".

The initial volume of the gas is 117L.

What is volume?

Volume is the amount of space the matter occupies.

What do you mean by combined gas law?

• The combined gas law combines the three gas laws: Boyle's Law, Charles' Law, and Gay-Lussac's Law.
• It states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant.
• When Avogadro's law is added to the combined gas law, the ideal gas law results.
• It is a combination of the other gas laws that works when everything except temperature, pressure, and volume are kept constant.
• There are a couple of common equations for writing the combined gas law. The classic law relates Boyle's law and Charles' law to state:

                                     PV/T = k

where P = pressure, V = volume, T = absolute temperature in K and k= constant.

• Another common formula for the combined gas law relates before and after conditions of a gas:

          P1V1 / T1 = P2V2 / T2

Where P1 and P2 = initial and final pressure in atm

           T1 and T2 = Initial and final temperature in K

            V1 and V2 = initial and final volume in L

Using combined gas law:

P1V1/T1 = P2V2/T2

Given:

P1 = 0.5 atm

T1 = 325K

P2 = 1.2 atm

V2 = 48L

T2 = 320K

Assuming that the number of moles are constant for both conditions:

(P1 x V1)/T1 = (P2 x V2)/T2

Substituting the given values,

(0.5 x V1)/325 = (1.2 x 48)/320K

Solving for V1

V1 = (1.2atm x 48L x 325K)/ (320Kx 0.5 atm)

 V1   = 117L

 Hence, the initial volume of the gas is 117L.

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equilibrium is a situation in which economic forces such as supply and demand are balanced and in the absence of external influences the values of economic variables will not change

The equilibrium constant depends on the following:-

• Pressure
• Volume

The formula used in the question is as follows:-

, After putting the value, the equilibrium constant is as follows:-

After solving it, the equilibrium constant is 1.245.

The pressure in different systems is as follows:-

Hence, the total pressure is:-

After solving it, the P2 is 32.8torr.

The equilibrium constant in the second case is:-

After putting the value,

After solving, the value of x is 6.402torr

Hence, the partial pressure is 6.798, 26.398, and 223.402 respectively.

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Answer:

The new partial pressures after equilibrium is reestablished for :

The new partial pressures after equilibrium is reestablished :

The new partial pressures after equilibrium is reestablished for :

Explanation:

At equilibrium before adding chlorine gas:

Partial pressure of the

Partial pressure of the

Partial pressure of the

The expression of an equilibrium constant is given by :

At equilibrium after adding chlorine gas:

Partial pressure of the

Partial pressure of the

Partial pressure of the

Total pressure of the system = P = 263.0 Torr

At initail

(13.2) Torr     (32.8) Torr                        (13.2) Torr

At equilbriumm

(13.2-x) Torr     (32.8-x) Torr                        (217.0+x) Torr

Solving for x;

x = 6.402 Torr

The new partial pressures after equilibrium is reestablished for :

The new partial pressures after equilibrium is reestablished :

The new partial pressures after equilibrium is reestablished for :

Answer: Option (2) is the correct answer.

Explanation:

An alkene is a molecule that contains a hydrocarbon chain with atleast one double bond.

For example, is a 1-butene molecule and it contains one double bond that consists of four shared electrons.

On the other hand, a molecule of hydrocabon that contains a triple bond is known as an alkyne. Whereas a hydrocarbon that contains only single bonds is known as an alkane.

Thus, we can conclude that the multiple covalent bond in a molecule of 1-butene is a double covalent bond that has 4 shared electrons.

Answer:

The mechanical energy of the system increases, provided there is no loss of energy due to friction. The energy would transform to kinetic energy when the speed is increasing. The mechanical energy of the system remains constant provided there is no loss of energy due to friction.

Explanation:

Final answer:

An object's mechanical energy generally increases as its velocity increases. This is because mechanical energy is the sum of an object's kinetic and potential energy, and kinetic energy is directly proportional to the square of its velocity.

Explanation:

In physics, mechanical energy is the energy that an object has due to its motion (kinetic energy) and position (potential energy). When an object's speed or velocity changes, specifically increases, so does its kinetic energy, as kinetic energy is directly proportional to the square of the object's velocity. Essentially, if an object's velocity doubles, its kinetic energy would quadruple. However, this does not take into account variables like air resistance, friction, or changes in potential energy. In an ideal, frictionless scenario, an increase in an object's velocity directly results in an increase in its mechanical energy.

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