According to Ciborowski, after performing experiments on naphthalene, what was the decrease in efficiency percent when the gas velocity was increased?
(a) 100% to 80-90%
(b) 100% to 70-60%
(c) 100% to 40-50%
(d) None of the mentioned
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I'm obligated to ask this question of Particle Growth and Condensation of Sublimable Materials and Adsorption in section Particles and Fluidization of Fluidization Engineering