10. Name the state of matter in which
a.Layers of particles can slip and slide over one another easily
b. Particles just move around randomly because of weak force of attraction
11. Arya droped a crystal of potassium permanganate into two beakers: A and B
containing hot water and cold water respectively. After keeping the beakers
undisturbed for some time what did he observe and why?
12. Sponge is a solid , yet we are able to compress it. Why?
13 Compare a block of wood water and air on the basis of the following
1.compressibility 2.Rigidity
3. Particle motion
14. A rubber band can change its shape on stretching will you classify it as solid or
not? Justify your answer
15. Arrange the three states of matter in the increasing order of (a) rate of diffusion
(b) Particle motion
Answers
Answer:
Explanation:
Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
2
Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Received: 28 August 2009; in revised form: 17 October 2009 / Accepted: 26 October 2009 / Published: 29 October 2009
Abstract: This review is focused on molecular momentum transport at fluid-solid interfaces mainly related to microfluidics and nanofluidics in micro-/nano-electro-mechanical systems (MEMS/NEMS). This broad subject covers molecular dynamics behaviors, boundary conditions, molecular momentum accommodations, theoretical and phenomenological models in terms of gas-solid and liquid-solid interfaces affected by various physical factors, such as fluid and solid species, surface roughness, surface patterns, wettability, temperature, pressure, fluid viscosity and polarity. This review offers an overview of the major achievements, including experiments, theories and molecular dynamics simulations, in the field with particular emphasis on the effects on microfluidics and nanofluidics in nanoscience and nanotechnology