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5- The process in which an electron colliding with a neutral particle forms negative ions is called.... a- Recombination b- Diffusion C- Attachment d- Elastic collision 6- An electron which can just excite the transition corresponding to yellow line at 589 nm having energy and velocity equal to.... a- 2.11 eV and 8.6x10° m/sec. respectively b- 3.54 ev and 7.4x10° m/sec. respectively c- 2.11 J and 8.6x10° cm/sec. respectively d- 2.11eV and 8.6x10 cm/sec. respectively 7- The mean free path of the particles of a gas is the ... a- Average distance which any particle travels between collision b- Average distance which any particle travels in collision C- Whole distance which any particle travels in collisions d- Whole distance which any particle travels between collision 8- Am bipolar diffusion means. . a- The condition of equilibrium is reached b- Charge separation is not reached C- Charge separation reaches a state of balance d- lons and electrons diffuse with the same velocity, hence the charge separation reaches a state of balance 9- The collision frequency per particle in plasma is given by v = V2nnd²9 v = nnd²8/4 c- v = n² nd?9/4 a- υ d- not of all above 10- In abnormal glow discharge, the current density at the cathode is.. a- Rise b- Rise sharply C- Constant d- Decrease 11- The length of the cathode dark space which affected by pressure changing is. a- inversely proportional to pressure changing b- constant influenced by secondary collision d- influenced by primary ionization coefficient C-

5- The process in which an electron colliding with a neutral particle forms negative ions is called.... a- Recombination b- Diffusion C- Attachment d- Elastic collision 6- An electron which can just excite the transition corresponding to yellow line at 589 nm having energy and velocity equal to.... a- 2.11 eV and 8.6x10° m/sec. respectively b- 3.54 ev and 7.4x10° m/sec. respectively c- 2.11 J and 8.6x10° cm/sec. respectively d- 2.11eV and 8.6x10 cm/sec. respectively 7- The mean free path of the particles of a gas is the ... a- Average distance which any particle travels between collision b- Average distance which any particle travels in collision C- Whole distance which any particle travels in collisions d- Whole distance which any particle travels between collision 8- Am bipolar diffusion means. . a- The condition of equilibrium is reached b- Charge separation is not reached C- Charge separation reaches a state of balance d- lons and electrons diffuse with the same velocity, hence the charge separation reaches a state of balance 9- The collision frequency per particle in plasma is given by v = V2nnd²9 v = nnd²8/4 c- v = n² nd?9/4 a- υ d- not of all above 10- In abnormal glow discharge, the current density at the cathode is.. a- Rise b- Rise sharply C- Constant d- Decrease 11- The length of the cathode dark space which affected by pressure changing is. a- inversely proportional to pressure changing b- constant influenced by secondary collision d- influenced by primary ionization coefficient C-

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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5- The process in which an electron colliding with a neutral particle forms negative ions is called.. a- Recombination b- Diffusion C- Attachment d- Elastic collision 6- An electron which can just excite the transition corresponding to yellow line at 589 nm having energy and velocity equal to . a- 2.11 ev and 8.6x10° m/sec. respectively b- 3.54 ev and 7.4x10° m/sec. respectively c- 2.11 J and 8.6x10° cm/sec. respectively d- 2.11eV and 8.6x10 cm/sec. respectively 7- The mean free path of the particles of a gas is the . a- Average distance which any particle travels between collision b- Average distance which any particle travels in collisions C- Whole distance which any particle travels in collisions d- Whole distance which any particle travels between collision 8- Am bipolar diffusion means.. a- The condition of equilibrium is reached b- Charge separation is not reached C- Charge separation reaches a state of balance d- lons and electrons diffuse with the same velocity, hence the charge separation reaches a state of balance 9- The collision frequency per particle in plasma is given by V2nnd20 *........ a- v = b- v = nnd²9/4 C- v = n?nd?8/4 d- not of all above 10- In abnormal glow discharge, the current density at the cathode is.. a- Rise b- Rise sharply C- Constant d- Decrease 11- The length of the cathode dark space which affected by pressure changing is.. a- inversely proportional to pressure changing b- constant c- influenced by secondary collision d- influenced by primary ionization coefficient
Transcribed Image Text:5- The process in which an electron colliding with a neutral particle forms negative ions is called.. a- Recombination b- Diffusion C- Attachment d- Elastic collision 6- An electron which can just excite the transition corresponding to yellow line at 589 nm having energy and velocity equal to . a- 2.11 ev and 8.6x10° m/sec. respectively b- 3.54 ev and 7.4x10° m/sec. respectively c- 2.11 J and 8.6x10° cm/sec. respectively d- 2.11eV and 8.6x10 cm/sec. respectively 7- The mean free path of the particles of a gas is the . a- Average distance which any particle travels between collision b- Average distance which any particle travels in collisions C- Whole distance which any particle travels in collisions d- Whole distance which any particle travels between collision 8- Am bipolar diffusion means.. a- The condition of equilibrium is reached b- Charge separation is not reached C- Charge separation reaches a state of balance d- lons and electrons diffuse with the same velocity, hence the charge separation reaches a state of balance 9- The collision frequency per particle in plasma is given by V2nnd20 *........ a- v = b- v = nnd²9/4 C- v = n?nd?8/4 d- not of all above 10- In abnormal glow discharge, the current density at the cathode is.. a- Rise b- Rise sharply C- Constant d- Decrease 11- The length of the cathode dark space which affected by pressure changing is.. a- inversely proportional to pressure changing b- constant c- influenced by secondary collision d- influenced by primary ionization coefficient
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