【Daily Question】Principles of Chemical Engineering 084: Viscosity (June 19)
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The last edit to this post was made by Zaihui Kangqiao on 2015-6-19 at 10:12. The Chemical Engineering Theory section is now launching a \"One Question per Day\" activity aimed at helping everyone reinforce their basic knowledge in chemical engineering. Subsequent series such as \"Chemical Engineering Principles\", \"Mass Transfer and Separation\", \"Chemical Engineering Thermodynamics\", and \"Chemical Engineering Processes\" will also be introduced. We hope for your active support! Answers to the questions in the \"One Question per Day\" activity can be viewed directly, and the thread will be closed after 1 day! ! You get 2 wealth points just for participating, and an additional 3 wealth points if you answer correctly~~~ Multiple-choice question: Which of the following statements is correct? Multiple-choice question: A. The viscosity of a liquid decreases as the temperature rises ； B. The viscosity of a gas increases as the temperature rises ； C. The viscosity of a liquid essentially does not change with pressure ； D. The viscosity of a gas decreases as pressure increases. ABC
A. The viscosity of a liquid decreases as the temperature rises； B. The viscosity of a gas increases as the temperature rises ； C. The viscosity of a liquid essentially does not change with pressure ；
Which of the following conclusions is correct (A B C)? Multiple-choice question: A. The viscosity of a liquid decreases as the temperature rises ； B. The viscosity of a gas increases as the temperature rises ； C. The viscosity of a liquid essentially does not change with pressure ； D. The viscosity of a gas decreases as pressure increases. The viscosity of a gas increases as temperature rises, while that of a liquid decreases. Liquid molecules are close to each other; an increase in temperature raises the kinetic energy of these molecules, facilitating movement between them and thus increasing the dynamic viscosity of the liquid ； Gas molecules are far apart from each other and relatively independent; an increase in temperature raises the molecular kinetic energy, but it also increases the frequency of collisions between molecules, thereby increasing the dynamic viscosity of the gas
ABC gas is compressible; the greater the pressure, the higher the density, and correspondingly, the greater the viscosity. OP, I can see the answer before replying. Is there something wrong with the post settings? Or?
A. The viscosity of a liquid decreases as the temperature rises； B. The viscosity of a gas increases as the temperature rises ； C. The viscosity of a liquid essentially does not change with pressure ；
A. The viscosity of a liquid decreases as the temperature rises； B. The viscosity of a gas increases as the temperature rises ； C. The viscosity of a liquid essentially does not change with pressure ；
Multiple-choice question: Which of the following conclusions are correct? (A, C). Multiple-choice question: A. The viscosity of a liquid decreases as the temperature rises ； B. The viscosity of a gas increases as the temperature rises ； C. The viscosity of a liquid essentially does not change with pressure ； D. The viscosity of a gas decreases as pressure increases.