The energy of the van der Waals bond, which is responsible for a number of the characteristics of water, is about 0.50 eV. (a) At what temperature would the average translational kinetic energy of water molecules be equal to this energy? (b) At that temperature, would water be liquid or gas? Under ordinary everyday conditions, do van der Waals forces play a role in the behavior of water?

Q: To what temperature must 76.3 g of krypton be raised in order to have the same rootmean-squared…

A: Root mean square speed of gas molecules can be calculate from the following formula

Q: Calculate the root mean square speed of a methane molecule (in ms-1) at a temperature of 880.0K.…

A: Root mean square speed of a molecule can be calculated using the equation given below:

Q: Hot-air balloons gain their lift from the lowering of density of air that occurs when the air in the…

A:

Q: What is the temperature (in K) of a sample of nitrogen with an root mean- square velocity of 35.0…

A: Given data -  root mean square velocity, μrms = 35.0 m/s  molar mass of nitrogen, M = 28 g/mol  =…

Q: why is n/V squared in the van der Waals equation?

A: Vander Waal’s equation It is corrected form ideal gas equation and is applicable to real gases.…

Q: An ordinary gasoline can measuring 30.0 cm by 20.0 cm by 15.0 cm is evacuated with a vacuum pump.…

A:

Q: At what temperature will the most probable speed of the molecules of the second member of the…

A:

Q: What is the root-mean-square speed of CO at 113 degrees Celsius?

A: Temperature = 113 C =(113+ 273) K =386K Molar mass of CO  = 28.01 g/mol

Q: If He (g) has an average kinetic energy of 8710 J/mol under certain conditions, what is the root…

A: The root mean square speed of O2 (g) molecules is calculated in step two.

Q: Calculate the root mean square velocity of gaseous xenon atoms at 25 degrees Celsius.

A: Conversion of temperature from Celsius to kelvin: 0°C=273.15 K25°C=25+273.15=298.15 K Molar mass of…

Q: What is the root mean square speed (in m/s) of nitrogen at 26.3oC?

A: Given, Molecule  = nitrogen  (N2) Temperature = 26.3 °C =(26.3+273)K = 299.3 K

Q: Calculate the root mean square speed of helium atoms and nitrogen molecules in m/s at 25°C

A:

Q: The density of a sample of NH3(g) at a pressure of 1.00 atm is 0.946 g/L. What is the…

A: Given that -  Pressure of ammonia = 1.00 atm  Density of ammonia = 0.946 g/L  Temperature is -  PM =…

Q: A sample of neon of mass 425 mg occupies 6.00 dm3 at 77 K. What pressure does it exert?

A: Ideal gas equation:                                                      PV = nRT where, P=…

Q: Suppose that a liquid is 10 times denser than water. If you were to sip this liquid at sea level…

A: Given The atmospheric pressure= 1atm g = 9.8m/s2 d2= 10d1 d1= 1g/cc   when both the pressures are…

Q: The root-mean-square speed of CO at 121.7 °C is m/s.

A: We know the root mean square(r.m.s.) speed of a gaseous molecule is given as-

Q: DETERMINE (i) the most probable speed, (ii) the average speed, and (iii) the square-root- mean speed…

A: Most probable speed, vmp = 2RTM   Average speed, vave = 8RTπM   Root-mean-square speed, vrms =…

Q: At what pressure will the mean free path in room-temperature (20∘C)(20∘C) nitrogen be 1.3 mm ?

A: Mean Free Path is the average distance traveled by a moving molecule between collisions. N2 is a…

Q: 3. At what temperature in kelvin is the root mean square speed of helium atoms (atomic weight =…

A:

Q: Calculate the height of a column of water at 25 °C that corresponds to normal atmospheric pressure.…

A: Given data contains, Temperature is 25°C. Density of water is 1.0g/cm3=1000kg/m3 Value of…

Q: Twenty-five milliliters of liquid nitrogen (density = 0.807 g/mL)is poured into a cylindrical…

A: Given - Density = 0.807 g/mL Radius of cylinder = 10.0 cm Length = 20.0 cm Pressure = 760.0 mmHg…

Q: If He(g) has an average kinetic energy of 9030 J/mol under certain conditions, what is the root mean…

A: The average kinetic energy of He (g) is 9030 J/mol. The expression of kinetic energy is shown below.

Q: Q2: Calculate the mole fraction of 15 % (w/w) C6H1206?

A:

Q: How is the kinetic energy of a gas related to temperature? How is the root mean square velocity of a…

A: We know that if heat is not transferred when the two systems are in contact, then it is said to be…

Q: If He(g) has an average kinetic energy of 7890 J/mol under certain conditions, what is the root mean…

A:

Q: Calculate the value of the root-mean-square speed of ozone molecules in the stratosphere, where the…

A: The formula of the root-mean-squared velocity is in the figure whereWhere,Vrms = the…

Q: 3C. Restate the assumptions of the kinetic molecular theory.

A: The kinetic theory of gasses is an model of the thermodynamic behaviour of the gasses .It explain…

Q: Compute the root-mean-square speed of H2 molecules in a sample of hydrogen gas at a temperature of…

A: The questions based on Kinetic molecular theory of gases. we have to calculate root mean square…

Q: 5B Use the distribution function for molecular speeds to derive an expression for the average of the…

A: we need to determine <v2>

Q: II 18 Calculating average molecular speed Calculate the root mean square (ms) average speed of the…

A: Given that: Temperature (T) = -100.0°C = 173 K Pressure = 0.10 atm Room mean square speed = ?

Q: The root mean square speed of H2 molecules at 25 °C is about 1.6 km/s. What is the root mean square…

A: The root mean square velocity of a particle is defined as the square root of the average of the…

Q: For O2 at 25 °C, CONSTRUCT a plot of the probability density of molecular speeds VS speed.

A:

Q: Methane CH4 is a gas at room temperature. What is its root mean square velocity

A: Root mean square velocity can be calculated by using the following formula:

Q: A gas made up of homonuclear diatomic molecules escapes through a pinhole 2.16 times as fast as Xe…

A: Effusion : The escape of gas through a pin hole from high pressure to low pressure is called…

Q: Eapare the theoretical speeds of sound in hydrogen (M = 2.0 Yu = 1.4) with helium %3D mol (Mu =…

A: The speed of sound is the distance travelled per unit of time by a sound wave.  It propagates…

Q: Q2: Calculate the mole fraction of 15 % (w/w) C6H12O6?

A: Welcome to bartleby !

Q: The diameter of an Xe atom is 216 pm. What is the mean free path in nm of 0.75 mol Xe confined in 7…

A: Given Values: The diameter of Xe atom is 216 pm The mole of Xe is 0.75 and volume is 7 L and…

Q: What is the root mean square velocity of O2 at 375 K? Where R is the ideal gas constant(8.314 J/mol…

A: Interpretation-  To determine the root mean square velocity of  O2 at 375 K? Where R is the ideal…

Q: Since the value of the van der Waals constant b for argon is 0.0322 dm3 / mol, what is the radius of…

A: Given , vander waals constant, b = 0.0322 dm3/mol = 3.22 x 10-5 m3/mol  Radius of Ar atom ,r  = ?

Q: The root mean square speed of CO at 113 C is  ______ m/s  a)  1.84             b)  58.3…

A: The formula for the root mean square speed is  Vrms = ( 3RT/M)1/2  where Vrms = root mean square…

Q: Since the value of the van der Waals constant b for argon is 0.0322 dm3 / mol, what is the radius of…

A: Given that: b = 0.0322 dm3 / mol                        = 0.0322  x 10-3 m3 / mol…

Q: Consider a sample of nitrogen gas, N2, in which the constituent molecules have a root-mean-square…

A: A question based on root mean square velocity, which is to be accomplished.

Q: Calculate the root-square-mean velocity of O2 molecules with an average kinetic energy of 10 kj /…

A: Average kinetic energy of the gas molecule is given by (3/2)kT Root square mean velocity of the gas…

Q: (a) Compute the root-mean-square speed of H2 molecules     in hydrogen at a temperature of 300 K.(b)…

A: The root mean square speed (μrms) of a substance connects the temperature (T) and the molar mass…

Q: Calculate the root mean square velocity of boron trifluoride molecules at 26.0•C

A: The temperature of boron trifluoride molecules is 26.0°C.

Q: Calculate the root-mean-square speed of Ne atoms at the temperature at which their average kinetic…

A: Given :-  Average kinetic energy of Ne = K = 4.33 kJ/mol = 4330 J/mol  Root mean square speed of Ne…

Q: Determine the root mean square velocity of chlorine molecules at 25.0 C in m/s.

A: Temperature =25°C Used formula- U(rmx)=√(3RT/M) Molar mass of Cl2=70.906g/mol

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.