Kinetic enerzy and tem articles in a monatomic idcal gas are lith velocities v a
ID: 1872567 • Letter: K
Question
Kinetic enerzy and tem articles in a monatomic idcal gas are lith velocities v and respectively, with 265 shown. Both have mass m Wie an expression for the kinetic energy of each particle Is the k particle 1? Explain. g The two particles collide with each other. The speed of particle 2 after the collision is B. observed to be less than that before the collision. L Is the sum of the kinetic energies of the two particles after the collision greater than, less than, or equal to the sum of the kinetic energies before the collision? Explain 2. Is the speed of particle 1 after the collision greater than, less than, or equal to that before the collision? Explain. Are your answers consistent with the assumption that collisions between the particles in an ideal gas are elastic? Explain. 3. C. Consider an ideal gas sealed in an insulated container. Would collisions between the gas particles tend to increase, decrease, or not affect the sum of the kinetic energies of the gas particles? the average kinetic energy of the gas particles the temperature of the gas? (Hint: Recall that in an ideal gas, the tem the kinetic energy as follows: 3/2 k,T= K,m,-1/2 nm Are your answers consistent with: . the e assumption that the collisions are elastic? your expectation about whether the temperature of the gas would change? CPearson Cusiom Publishing Indated Preliminary Second Edition, 2010Explanation / Answer
From the given question,
1A. Let the mass of first particle=m
let the mass of second particle=m
velocity of first particle=v1
velocity of second particle=v2
Kinetic energy of first particle(KE1)=(1/2)(m)(v12)
Kinetic energy of first particle(KE2)=(1/2)(m)(v22)
Its given that v2>v1
so, KE2>KE1
B. For ideal gases, collisions are always elastic. so sum of kinetic energy before collision is sum of kinetic energy after collision.
2. As the speed of particle 2 is reduced, so by sonservation of momentum the speed of particle 1 will be greater that to that before collision.
3. Yes . answers are consistent with the assumptions that collisions are elastic, as both momentum and kinetic energy of particles are conserved.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.