When the reaction mixture is heated, the average kinetic energy of the reactant particles increases. This means more particles have higher energies and so are able to reach or exceed the activation energy of the reaction. The activation energy is the minimum energy required for reactant particles...
. If the water is heated. the particles move more quickly, with what I have said. A. which agree B. which agrees C. what agrees D. that agrees 相关知识点: 试题来源: 解析 B【核心短语/词汇】 agree with同意 【翻译】 如果水被加热,分子运动更快,这与 我所说的一致。 【解析】 此题考查...
What happens to the particles of a solid, in terms of movement and kinetic energy, as it is heated to its melting point, including whether this is a physical or chemical change? A gas expands and does P-V work on the surroundings equal to 299 J. At the same tim...
Particulate matter (also known as particulate pollution) refers to the solid and liquid particles that are found in the air that we breathe. Some of the items that make up particulate matter can be seen with the naked eye, while some are so small they can only be seen with a microscope....
magnets depends on the type of material that makes them up, an electromagnet's strength depends on the amount of current that flows through it. Permanent magnets can lose their magnetic properties such as their ability to give off a magnetic field when they're heated to a certain temperature....
Also, cinnabar shouldn't be cut or ground without water to prevent the inhalation of particles, Ottaway adds. "Ground cinnabar should be handled with care, although ingesting small amounts is unlikely to cause harm because mercury sulfide just passes through your body unaltered," she says. Chil...
Gold sol is a solvent repelling sol i.e., a lyophobic sol and unstable in nature. Addition of gelatin stabilises the gold because gelatin forms lyophilic sol and act as a protective colloid.
Microstates represent the molecular-level properties of individual particles of the system like velocity, momentum, etc. The entropy of a thermodynamic system represents the degree of randomness or disorderliness in the system caused by the movement...
These were the earliest devices used to humidify indoor air. Vaporizers create steam by boiling water. This heat kills all germs, so the vapor they release is safe to inhale. Vaporizers also do not spread hazardous particulate matter. The steam they generate doesn't contain the particles tha...
Entanglement phenomenology arises because latent variables exist that are carried away, along with the moving particles that have interacted, and by which correlations are preserved. Conservation is assumed to be born in the phase, just as momentum is for instance. In other words, all known ...