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baseball is thrown from center field to second base and its velocity changes from 15m/s to 10m/s. s mass is 150g, how much energy was lost due to air resistance (in J)? A) 9.4 B) 14.2 Ci8.3 A small object of mass m slides along the frictionless track in the figure, staring from rest at point D) 16.9 E) 6.2 What is its speed (in m/s) at point B? A) 10.8 B) 7.7 C) 12.3 D) 16.9 E) 8.9 A B 9m 5m 10) A 2000kg car and a 1000kg car traveling at 60m/s in opposite directions collide head on and lock together. What are their speeds after the collision (in m/s)? A) 9.4 B) 16.7 C) 14.3 D) 18.1 E) 20.0 11) A 800kg car moving at 20m/s hits a 1200kg parked car head on. How much mechanical energy is dissipated if collision is completely inelastic? A) 82000J B) 54000J C) 45000J D) 69000J E) 96000J 12) What is the mass of 0.6 mole of CO2 (in g)? A) 31 B) 7 C) 26 D) 18 E) 37 13) What is the volume of 8 moles of an ideal gas at p=latm and T=42°C? A) 0.069m B) 0.021m C) 0.207m D) 0.05m E) 0.570m 14) If a solute diffuses through water an average distance of 2cm in 2hours, what is its diffusion constant (in m2/s)? D) 0.6x106 E) 0.6x104

baseball is thrown from center field to second base and its velocity changes from 15m/s to 10m/s. s mass is 150g, how much energy was lost due to air resistance (in J)? A) 9.4 B) 14.2 Ci8.3 A small object of mass m slides along the frictionless track in the figure, staring from rest at point D) 16.9 E) 6.2 What is its speed (in m/s) at point B? A) 10.8 B) 7.7 C) 12.3 D) 16.9 E) 8.9 A B 9m 5m 10) A 2000kg car and a 1000kg car traveling at 60m/s in opposite directions collide head on and lock together. What are their speeds after the collision (in m/s)? A) 9.4 B) 16.7 C) 14.3 D) 18.1 E) 20.0 11) A 800kg car moving at 20m/s hits a 1200kg parked car head on. How much mechanical energy is dissipated if collision is completely inelastic? A) 82000J B) 54000J C) 45000J D) 69000J E) 96000J 12) What is the mass of 0.6 mole of CO2 (in g)? A) 31 B) 7 C) 26 D) 18 E) 37 13) What is the volume of 8 moles of an ideal gas at p=latm and T=42°C? A) 0.069m B) 0.021m C) 0.207m D) 0.05m E) 0.570m 14) If a solute diffuses through water an average distance of 2cm in 2hours, what is its diffusion constant (in m2/s)? D) 0.6x106 E) 0.6x104

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter9: Gases
Section: Chapter Questions
Problem 89E: When two cotton plugs. one moistened with ammonia and the other with hydrochloric acid, are...
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baseball is thrown from center field to second base and its velocity changes from 15m/s to 10m/s. s mass is 150g, how much energy was lost due to air resistance (in J)? A) 9.4 B) 14.2 Cis.3 A small object of mass m slides along the frictionless track in the figure, staring from rest at point D) 16.9 E) 6.2 What is its speed (in m/s) at point B? A) 10.8 B) 7.7 C) 12.3 D) 16.9 E) 8.9 B. 9m 5m 10) A 2000kg car and a 1000kg car traveling at 60m/s in opposite directions collide head on and lock together. What are their speeds after the collision (in m/s)? A) 9.4 B) 16.7 C) 14.3 D) 18.1 E) 20.0 11) A 800kg car moving at 20m/s hits a 1200kg parked car head on. How much mechanical energy is dissipated if collision is completely inelastic? A) 82000J B) 54000J C) 45000J D) 69000J E) 96000J 12) What is the mass of 0.6 mole of CO2 (in g)? A) 31 В) 7 C) 26 D) 18 E) 37 13) What is the volume of 8 moles of an ideal gas at p=latm and T=42°C? A) 0.069m B) 0.021m C) 0.207m D) 0.05m3 E) 0.570m 14) If a solute diffuses through water an average distance of 2cm in 2hours, what is its diffusion constant (in m/s)? A) 2.8x106 в) 6х104 C) 2.8х108 D) 0.6x106 E) 0.6x10 15) The work done by an ideal gas during on full cycle is 400 J. What is the change in internal energy? A) -400 J B) -200 J C) 200 J D) 400 J E) zero 16) A gas undergoes a series of pressure and volume changes as shown in figure below. How much work is done by the gas along the path abc (in J) ? P (atm) 2. 1 0.3 0.7 C) 1.4x10 D) 1.24x10 E) 0.8x105 A) 1.63x105 B) 2.8x105 17) The rms speed of the molecules in an ideal gas with molecular mass 32 u is 300 m/s. The temperature of the gas (in Kelvin scale) is: C) 284 D) 142 E) 323 A) 116 B) 205
Transcribed Image Text:baseball is thrown from center field to second base and its velocity changes from 15m/s to 10m/s. s mass is 150g, how much energy was lost due to air resistance (in J)? A) 9.4 B) 14.2 Cis.3 A small object of mass m slides along the frictionless track in the figure, staring from rest at point D) 16.9 E) 6.2 What is its speed (in m/s) at point B? A) 10.8 B) 7.7 C) 12.3 D) 16.9 E) 8.9 B. 9m 5m 10) A 2000kg car and a 1000kg car traveling at 60m/s in opposite directions collide head on and lock together. What are their speeds after the collision (in m/s)? A) 9.4 B) 16.7 C) 14.3 D) 18.1 E) 20.0 11) A 800kg car moving at 20m/s hits a 1200kg parked car head on. How much mechanical energy is dissipated if collision is completely inelastic? A) 82000J B) 54000J C) 45000J D) 69000J E) 96000J 12) What is the mass of 0.6 mole of CO2 (in g)? A) 31 В) 7 C) 26 D) 18 E) 37 13) What is the volume of 8 moles of an ideal gas at p=latm and T=42°C? A) 0.069m B) 0.021m C) 0.207m D) 0.05m3 E) 0.570m 14) If a solute diffuses through water an average distance of 2cm in 2hours, what is its diffusion constant (in m/s)? A) 2.8x106 в) 6х104 C) 2.8х108 D) 0.6x106 E) 0.6x10 15) The work done by an ideal gas during on full cycle is 400 J. What is the change in internal energy? A) -400 J B) -200 J C) 200 J D) 400 J E) zero 16) A gas undergoes a series of pressure and volume changes as shown in figure below. How much work is done by the gas along the path abc (in J) ? P (atm) 2. 1 0.3 0.7 C) 1.4x10 D) 1.24x10 E) 0.8x105 A) 1.63x105 B) 2.8x105 17) The rms speed of the molecules in an ideal gas with molecular mass 32 u is 300 m/s. The temperature of the gas (in Kelvin scale) is: C) 284 D) 142 E) 323 A) 116 B) 205
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