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Personalized lecules have twice the mass of hydrogen gas molecules (H2).A container of helium-4 gas and...
You have two flasks of equal volume. Flask A contains hydrogen gas (H2) at 0°C and...
You have two flasks of equal volume. Flask A contains hydrogen gas (H2) at 0°C and 1 atm of pressure. Flask B contains CO2 gas at 25°C and 2 atm pressure. a) What is the ratio of the average kinetic energy per molecule of H2/CO2? b) What is the ratio of the average kinetic velocity of H2/CO2 molecules? c) What is the ratio of the number of molecules of CO2/H2? d) What is the mass ratio of CO2/H2?
Helium atoms have a mass of 4u and oxygen molecules have a mass of 32u, where...
Helium atoms have a mass of 4u and oxygen molecules have a mass of 32u, where u is defined as an atomic mass unit (u=1.660540×10?27kg). Compare a gas of helium atoms to a gas of oxygen molecules. At what gas temperature Trms would the root-mean-square (rms) speed of a helium atom be equal to that of an oxygen molecule in a gas at 300 K? The answer is not 300 or 37.5
Decide which of the following statements are true and which are false. True Real gas molecules...
Decide which of the following statements are true and which are false. True Real gas molecules have a volume and exert attractive forces on one another. False As temperature increases, the average kinetic energy of a sample of gas molecules decreases. False In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the O2(g) sample must be at a higher temperature than the H2(g) sample. False At constant temperature, the lighter the...
5. An ideal gas is confined to a container whose volume is fixed. If the container...
5. An ideal gas is confined to a container whose volume is fixed. If the container holds n moles of gas, by what factor will the pressure increase if the absolute temperature is increased by a factor of 2? (A) 2/(nR) (B) 2 (C) 2nR (D) 2/n (E) 2/R 6. Two large glass containers of equal volume each hold 1 mole of gas. Container 1 is filled with hydrogen gas (2 g/mol), and Container 2 holds helium (4 g/mol). If...
A 7.00 L container with solid walls contains 3.50 moles of an ideal gas at a...
A 7.00 L container with solid walls contains 3.50 moles of an ideal gas at a pressure of 1.60 x 106 Pa. (a) What is the average kinetic energy of the gas molecules in the container. (b) If the gas is nitrogen (N2), what is the rms speed of each gas molecule? (c) How much heat must be added to raise the temperature of the gas by 100 K? NB. The atomic mass of nitrogen is 14.0067 g/mol. True False
TB3 Liquid nitrogen is much cheaper than liquid helium. The molecular weight of diatomic nitrogen (N2) is about 28 g/mole and that of atomic helium is about 4 g/mole. One reason for this is that whil...
TB3 Liquid nitrogen is much cheaper than liquid helium. The molecular weight of diatomic nitrogen (N2) is about 28 g/mole and that of atomic helium is about 4 g/mole. One reason for this is that while nitrogen is the most common constituent of the atmosphere, only minute amounts of helium are found in the atmosphere. (Helium is found in natural gas deposits.) Why are only minute amounts of helium found in the atmosphere? TB3 If the absolute temperature of a...
13. Select the correct statement below regarding H2O and SH2. a) both molecules are nonpolar b)...
13. Select the correct statement below regarding H2O and SH2. a) both molecules are nonpolar b) both molecules are polar c) H2O is polar, but SH2 is nonpolar d) SH2 is polar, but H2O is nonpolar 15. Select the correct statement a) a double bond consists of two pi bonds b) a triple bond consists of three pi bonds c) a single bond consists of one sigma bond d) all statements are correct17. Select the incorrect statement. a) Gases molecules...
Physics 2 1. An ideal gas is in a container under a pressure of 20.0 atm...
Physics 2 1. An ideal gas is in a container under a pressure of 20.0 atm at a temperature of 27.0oC. If half of the gas is released from the container and the temperature rises to 50.0oC, what is the final gas pressure? 2. Find the speed rms of the Hydrogen (H2) molecules at a temperature of 27oC
Given that the pressure of a gas on a cubic container wall can be equated to...
Given that the pressure of a gas on a cubic container wall can be equated to the molecular density (i.e. number of molecules N in a volume V) by the molecular mass m by the square of the average velocity vx 2 ave in the direction x impacting on the container wall, show that the translational kinetic KTr energy is directly proportional to temperature T.
A container holds 2.5 mol of gas. The total average kinetic energy of the gas molecules...
A container holds 2.5 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 6.6x10-3 kg bullet with a speed of 800 m/s. What is the Kelvin temperature of the gas?
Decide which of the following statements are true and which are false. True Real gas molecules have a volume and exert attractive forces on one another. False As temperature increases, the average kinetic energy of a sample of gas molecules decreases. False In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the O2(g) sample must be at a higher temperature than the H2(g) sample. False At constant temperature, the lighter the...
5. An ideal gas is confined to a container whose volume is fixed. If the container holds n moles of gas, by what factor will the pressure increase if the absolute temperature is increased by a factor of 2? (A) 2/(nR) (B) 2 (C) 2nR (D) 2/n (E) 2/R 6. Two large glass containers of equal volume each hold 1 mole of gas. Container 1 is filled with hydrogen gas (2 g/mol), and Container 2 holds helium (4 g/mol). If...
A 7.00 L container with solid walls contains 3.50 moles of an ideal gas at a pressure of 1.60 x 106 Pa. (a) What is the average kinetic energy of the gas molecules in the container. (b) If the gas is nitrogen (N2), what is the rms speed of each gas molecule? (c) How much heat must be added to raise the temperature of the gas by 100 K? NB. The atomic mass of nitrogen is 14.0067 g/mol. True False
TB3 Liquid nitrogen is much cheaper than liquid helium. The molecular weight of diatomic nitrogen (N2) is about 28 g/mole and that of atomic helium is about 4 g/mole. One reason for this is that while nitrogen is the most common constituent of the atmosphere, only minute amounts of helium are found in the atmosphere. (Helium is found in natural gas deposits.) Why are only minute amounts of helium found in the atmosphere? TB3 If the absolute temperature of a...
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