If thermal properties reveal a sample of N2 gas to have a one-molecule translational partition function qtrans of 1.45⋅1...
If thermal properties reveal a sample of N2 gas to have a one-molecule translational partition function qtrans of 1.45⋅10^26, and a second sample of a pure, unknown diatomic homonuclear gas is found to have a qtrans of 2.29⋅10^26 at the same temperature and volume, what is the second gas?
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If thermal properties reveal a sample of N2 gas to have a one-molecule translational partition function qtrans of 1.45⋅1...
If thermal properties reveal a sample of F2 gas to have a one-molecule translational partition function...
If thermal properties reveal a sample of F2 gas to
have a one-molecule translational partition function
qtrans of 2.29⋅10^26, and a second sample of a pure,
unknown diatomic homonuclear gas is found to have a
qtrans of 1.45⋅10^26 at the same temperature and volume,
what is the second gas?
trans of 2.29. 104, and a second sample of a pure, unknown diatomic homonuclear gas is found to have a trans of 1.45 . 102 at the same temperature and If...
1. Calculate (a) the thermal wave-length (in pm) and (b) the translational partition function of H...
1. Calculate (a) the thermal wave-length (in pm) and (b) the translational partition function of H atom in a cubic box of side 1.0 cm at 300 K. (c) Can a hydrogern molecule be considered as a classical system (as a diatomic molecule in whiclh hydrogen atoms behave classically) at this temperature? Explain why.
(4) (24 pts): A gas of nitrogen, N2, is in thermal equilibrium. a) The average kinetic...
(4) (24 pts): A gas of nitrogen, N2, is in thermal equilibrium. a) The average kinetic energy of a molecule of N2 is mVrms/2. Assume N2 to be a diatomic gas with only three activated degrees of freedom. Write an expression for Vrms as a function of the temperature. b) Assume T = 20 °C. Compare Vrms to the escape velocity of a molecule from the surface of the Earth. Explain whether we need to worry that Earth might lose...
The rate of diffusion of a particular gas was measured and found to be 50.5 mm/min....
The rate of diffusion of a particular gas was measured and found to be 50.5 mm/min. Under the same conditions, the rate of diffusion of SF was 18.7 mm/min. What is the molar mass of the unknown gas? What gas might this be? One group of students in an introductory chemistry course is arguing that the pressures of a con- tainer of hydrogen gas and a container of sulfur dioxide gas, under the following conditions, cannot be equal. Both containers...
1.Effusion is a process in which a gas escapes from a container through a small opening...
1.Effusion is a process in which a gas escapes from a container through a small opening into a vacuum. In a pair of experiments, a sample of tetrafluoroethylene, C2F4, effuses at a rate of 4.6 × 10-6 mol/h and an unknown gas effuses at a rate of 4.0×10-6 mol/h. Identify the unknown gas. 2.Molecules in a sample of a gas move at a variety of speeds. Molecular speed can be described by the root-mean-square speed of the gas, which is...
Problems 1. According to the Ideal Gas Law, which of the following is/are correct for a...
Problems 1. According to the Ideal Gas Law, which of the following is/are correct for a gas cylinder of fixed volume filled with one mole of oxygen gas? Please explain each one. a. When the temperature of the cylinder changes from 15 °C to 30 °C, the pressure inside the cylinder doubles. b. When a second mole of oxygen is added to the cylinder, the ratio T/P remains constant. C. An identical cylinder filled with the same pressure of hydrogen...
a. 242 m/s b. 1.21 x 103 m/s c. 822 m/s d. 483 m/s 25. Is this rms speed the same or different from the nitrogen molecules in the sample? Explain. 26. An ideal gas sample of 11 moles initially at STP...
a. 242 m/s b. 1.21 x 103 m/s c. 822 m/s d. 483 m/s 25. Is this rms speed the same or different from the nitrogen molecules in the sample? Explain. 26. An ideal gas sample of 11 moles initially at STP is isothermally compressed to half its original volume. What must be its final pressure? a. 4.8 atm b. 3 atm c. 2 atm d. 4 atm 27. In the previous question, by what factor does the internal energy...
*SHOW YOUR WORK* (Boyle's Law): 1. What is the final volume (in mL) or argon gas...
*SHOW YOUR WORK* (Boyle's Law): 1. What is the final volume (in mL) or argon gas is 50.0 mL at 705 torr is compressed to a pressure of 2.75 atm, at constant temperature? (Lewis Dot Structures): 2. Draw Lewis structures for the following molecules. Include partial charges, AXE designation, (example: AX2 E2), Electron-pair geometry and geometric-molecular shapes. Is it Polar or Non-Polar? CH2Cl2 SO2 3. Which of the following explains why the pressure of a gas increases when the temperature...
Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answens Chem 1A...
Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answens Chem 1A Weekly Quiz5 1) Determine the total the question. pressure of all gases (at STP) formed when 500mLofNT(C3H5NOI.d. 1.60 g/ml, molar mass 227.10 g/mol) reacts according to the following reaction. 1)_ - 4 C3H5(NO3130)-6 N2(8)+02) 12 CO2(g) 10 H2og) A) 57.2L B) 29.6L ) 175L D) 493L E) 448 L at volume (L) of 0.250 M HNO3 is nequired to neutralize a solution peepared by...
Name: Section: Gas Law Practice (IC-6) 1. At what temperature will 5.00 g of Cl, exert...
Name: Section: Gas Law Practice (IC-6) 1. At what temperature will 5.00 g of Cl, exert a pressure of 900. torrat a volume of 750 ml? 2. What pressure will be exerted by 25 g of CO, at a temperature of 25 "C and a volume of 500 mL? 3. Find the number of grams of CO, that exert a pressure of 785 torrs at a volume of 32.5 L and a temperature of 32°C 4. An elemental gas has...
If thermal properties reveal a sample of F2 gas to
have a one-molecule translational partition function
qtrans of 2.29⋅10^26, and a second sample of a pure,
unknown diatomic homonuclear gas is found to have a
qtrans of 1.45⋅10^26 at the same temperature and volume,
what is the second gas?
trans of 2.29. 104, and a second sample of a pure, unknown diatomic homonuclear gas is found to have a trans of 1.45 . 102 at the same temperature and If...
1. Calculate (a) the thermal wave-length (in pm) and (b) the translational partition function of H atom in a cubic box of side 1.0 cm at 300 K. (c) Can a hydrogern molecule be considered as a classical system (as a diatomic molecule in whiclh hydrogen atoms behave classically) at this temperature? Explain why.
(4) (24 pts): A gas of nitrogen, N2, is in thermal equilibrium. a) The average kinetic energy of a molecule of N2 is mVrms/2. Assume N2 to be a diatomic gas with only three activated degrees of freedom. Write an expression for Vrms as a function of the temperature. b) Assume T = 20 °C. Compare Vrms to the escape velocity of a molecule from the surface of the Earth. Explain whether we need to worry that Earth might lose...
The rate of diffusion of a particular gas was measured and found to be 50.5 mm/min. Under the same conditions, the rate of diffusion of SF was 18.7 mm/min. What is the molar mass of the unknown gas? What gas might this be? One group of students in an introductory chemistry course is arguing that the pressures of a con- tainer of hydrogen gas and a container of sulfur dioxide gas, under the following conditions, cannot be equal. Both containers...
Problems 1. According to the Ideal Gas Law, which of the following is/are correct for a gas cylinder of fixed volume filled with one mole of oxygen gas? Please explain each one. a. When the temperature of the cylinder changes from 15 °C to 30 °C, the pressure inside the cylinder doubles. b. When a second mole of oxygen is added to the cylinder, the ratio T/P remains constant. C. An identical cylinder filled with the same pressure of hydrogen...
a. 242 m/s b. 1.21 x 103 m/s c. 822 m/s d. 483 m/s 25. Is this rms speed the same or different from the nitrogen molecules in the sample? Explain. 26. An ideal gas sample of 11 moles initially at STP is isothermally compressed to half its original volume. What must be its final pressure? a. 4.8 atm b. 3 atm c. 2 atm d. 4 atm 27. In the previous question, by what factor does the internal energy...
Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answens Chem 1A Weekly Quiz5 1) Determine the total the question. pressure of all gases (at STP) formed when 500mLofNT(C3H5NOI.d. 1.60 g/ml, molar mass 227.10 g/mol) reacts according to the following reaction. 1)_ - 4 C3H5(NO3130)-6 N2(8)+02) 12 CO2(g) 10 H2og) A) 57.2L B) 29.6L ) 175L D) 493L E) 448 L at volume (L) of 0.250 M HNO3 is nequired to neutralize a solution peepared by...
Name: Section: Gas Law Practice (IC-6) 1. At what temperature will 5.00 g of Cl, exert a pressure of 900. torrat a volume of 750 ml? 2. What pressure will be exerted by 25 g of CO, at a temperature of 25 "C and a volume of 500 mL? 3. Find the number of grams of CO, that exert a pressure of 785 torrs at a volume of 32.5 L and a temperature of 32°C 4. An elemental gas has...
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