1) Compound A forms a gas, but Compound B forms a liquid What is it about the molecules that makes them different? A) Co

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1 Compound A Forms A Gas But Compound B Forms A Liquid What Is It About The Molecules That Makes Them Different A Co 1 (61.92 KiB) Viewed 14 times

1) Compound A forms a gas, but Compound B forms a liquid What is it about the molecules that makes them different? A) Compound Ah as hydrogen bonds between the molecules, but Compound B has dipole-dipole forces between the molecules B) The molecules of Compound A are lighter than the molecules of Compound B. Compound A has no intermolecular forces between molecules, but Compound B has some intermolecular forces between molecules D) Compound A has a lower vapor pressure between the molecules, and Compound B has a higher vapor pressure between the molecules E) The molecules of Compound A have a lower kinetic energy than the molecules of Compound B. 2) You have a container of Ne gas. You decrease the pressure and increase the temperature. Can you predict what, if anything. will happen to the volume? If so, what will happen to the pressure? (Hint: Use PV = nRT.) A) The volume will decrease B) The volume will remain the same. C) The volume will increase. D) It depends on how much the pressure is decreased and how much the temperature is increased. 3) (Ten point question) You have a 2.50 L of a gas at 298 K. If there are 0.100 mol of this gas in your 2.50 L container, what would the pressure of this gas be? PV-nRT.- PjV₁ P₂V₂ R=0.08206- Latm mol K A) Less than 0.500 atm. B) Between 0.500 atm and 1.00 atm. C) Between 1.00 atm and 1.50 atm. D) Between 1.50 atm and 2.00 atm. E) More than 2.00 atm. - 4) (Ten point question) You have a sample of He gas (molecular weight: 4.00) at 2.50 atm pressure and a temperature of 298 K. It is in a 2.00 L sealed flask. After increasing the temperature to 398 K, the volume increased to 3.50 L. What is the final pressure of this gas? PV=nRT, - PIVI P2V2 Latm mol K TI T2 A) Less than 0.500 atm. B) Between 0.500 atm and 1.00 atm. C) Between 1.50 atm and 2.00 atm. D) Between 2.00 atm and 2.50 atm. E) More than 2.50 atm. ,R=0.08206 5) From the Kinetic-Molecular Theory of Gases, the force of the molecules colliding with the container decides the A) Pressure D) Moles B) Value of R C) Temperature E) Volume