Moles, Density, Fraction & Concentration on Chemical Engineering related Questions and Answers

Question :   1 mole of Carbon dioxide enters in a reactor at a rate of 0.25 kg/s and leaves it at the rate of 1 kg/s, what are the number of moles of carbon dioxide leaves the reactor? 1. 0.25 2. 0.5 3. 0.75 4. 1 Answer :   1 - 0.25