Consider two 1-L samples of gas: one is H2 and the other is O2. Both are at 1 atm and 25 ºC. (1) Which sample has the gr...
Consider two 1-L samples of gas: one is H2 and the other is O2. Both are at 1 atm and 25 ºC.
(1) Which sample has the greater mass? Answer
(2) Which sample has the greater density? Answer(3) Which sample has the greater average kinetic energy? Answer(4) Which sample has the greater average molecular speed? answer
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Consider two 1-L samples of gas: one is H2 and the other is O2. Both are at 1 atm and 25 ºC. (1) Which sample has the gr...
Two sealed gas tanks of equal volume are separately filled with H2 and N2 gases, each...
Two sealed gas tanks of equal volume are separately filled with H2 and N2 gases, each at 20oC and 1.00 atm. For each answer to the following questions, please provide explanations. (a) Which gas has the greater average molecular kinetic energy? (b) Which gas has the greater average molecular speed? (c) Which gas has the greater average frequency of collisions with the container? (d) Which tank contains more molecules?
For questions 2 to 4 d, consider two 2.00 L flasks, one of which contains 0.250...
For questions 2 to 4 d, consider two 2.00 L flasks, one of which contains 0.250 mole of O2 gas at 50.0 deg C and the other of which contains 0.500 mole of H2 gas at 50.0 deg C. 4. a. In which flask is the ratio of molecular volume (volume occupied by the molecules touching one another in a condensed state) to gaseous sample volume (volume occupied by the entire gaseous sample) greater? (2 pt) b. ...
11. Consider a sample of hydrogen (H) and another sample of oxygen (O2). Both gases are...
11. Consider a sample of hydrogen (H) and another sample of oxygen (O2). Both gases are at the same temperature and pressure. The volume of each gas is equal. (5) a) which gas has the greatest number of moles, or are they the same? b) which gas has the greatest number of molecules, or are they the same? c) which gas has the greatest mass, or are they the same? d) Which gas has the highest kinetic energy, or are...
Consider separate 1.0 L samples of the following gases at STP: Cl2, C2H6, and Xe. Which...
Consider separate 1.0 L samples of the following gases at STP: Cl2, C2H6, and Xe. Which of the following statements are true regarding these gas samples? 1.The C2H6 gas sample has the largest average kinetic energy. 2.The Xe gas sample has the most molecules of gas present. 3.Each Xe gas particle collision with the container wall is more forceful as compared to each C2H6 and Cl2 collision. 4.The mass of the gas in each container is the same. 5. The...
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...
Consider two 1 L flasks, one containing O2, the other containing He, each at STP. Which...
Consider two 1 L flasks, one containing O2, the other containing He, each at STP. Which one of the following statements is false regarding these gases? O Each flask contains the same number of atoms or molecules. O The gases in each flask have the same average kinetic energy O The gases in each flask have the same density. O The pressure in each flask is the same O The temperature of the gases in each fask is 273.15 K
1. What would be the new pressure (in atm.) if a gas sample at 75°C and...
1. What would be the new pressure (in atm.) if a gas sample at 75°C and 2.0 atm. was heated to 100.0°C at constant volume. 2. How many grams of O2 are contained in a 4.0 L sample at 2.0 atm. and 25°C? 3. What is the total pressure of a mixture of N2 and O2 if the partial pressures are 350 mmHg and 475 mmHg, respectively? What is the % of N2 and O2 in the mixture? 4. What...
1. A gas has a volume of 1.57 L at 2.95 atm. What pressure is required...
1. A gas has a volume of 1.57 L at 2.95 atm. What pressure is required to reduce the volume to 1.25 L at the same temperature? at ga 2. A gas has a volume of 3.75 liters at 12°C, what is the volume at 25 C if the pressure remains constant? wil 3. What is the pressure of a gas in a 375 mL container, if it has a pressure of 219 Torr in a 525 mL container at...
a scientist has two samples of a substance
a scientist has two samples of a substance. both samples have the same temperature. one sample has a mass of 10 g. the other sample has a mass of 20 g. compare the average kinetic energy and total kinetic energy of the particles in each sample.
Five samples of neon gas are described in the table below. Rank the samples in order...
Five samples of neon gas are described in the table below. Rank the samples in order of increasing average kinetic energy of the atoms in them. That is, select "1" next to the sample in which the neon atoms have the lowest average kinetic energy. Select "2" next to the sample in which the neon atoms have the next lowest average kinetic energy, and so on. sample average kinetic energy of atoms in sample amount pressure temperature -28 °C 1.2...
11. Consider a sample of hydrogen (H) and another sample of oxygen (O2). Both gases are at the same temperature and pressure. The volume of each gas is equal. (5) a) which gas has the greatest number of moles, or are they the same? b) which gas has the greatest number of molecules, or are they the same? c) which gas has the greatest mass, or are they the same? d) Which gas has the highest kinetic energy, or are...
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...
Consider two 1 L flasks, one containing O2, the other containing He, each at STP. Which one of the following statements is false regarding these gases? O Each flask contains the same number of atoms or molecules. O The gases in each flask have the same average kinetic energy O The gases in each flask have the same density. O The pressure in each flask is the same O The temperature of the gases in each fask is 273.15 K
1. What would be the new pressure (in atm.) if a gas sample at 75°C and 2.0 atm. was heated to 100.0°C at constant volume. 2. How many grams of O2 are contained in a 4.0 L sample at 2.0 atm. and 25°C? 3. What is the total pressure of a mixture of N2 and O2 if the partial pressures are 350 mmHg and 475 mmHg, respectively? What is the % of N2 and O2 in the mixture? 4. What...
1. A gas has a volume of 1.57 L at 2.95 atm. What pressure is required to reduce the volume to 1.25 L at the same temperature? at ga 2. A gas has a volume of 3.75 liters at 12°C, what is the volume at 25 C if the pressure remains constant? wil 3. What is the pressure of a gas in a 375 mL container, if it has a pressure of 219 Torr in a 525 mL container at...
Five samples of neon gas are described in the table below. Rank the samples in order of increasing average kinetic energy of the atoms in them. That is, select "1" next to the sample in which the neon atoms have the lowest average kinetic energy. Select "2" next to the sample in which the neon atoms have the next lowest average kinetic energy, and so on. sample average kinetic energy of atoms in sample amount pressure temperature -28 °C 1.2...
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