Sound actually travels slower in air.This is because sound is kinetic energy and has to pass from molecule to molecule.In gas the molecules are farther apart taking more time for it to pass,in water the molecules are closer so it takes less time for the sound to get from one molecule to another and with cast iron (since it's very dense) the molecules are very close allowing sound to travel quickly with ease.
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Explanati4 ELECTRONS ARE IN THE OUTERMOST SHELL
on:
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That's a really cool question. Is a human was frozen, do you mean like, in a cold environment or literally ice? If so ice, then they might die from suffocation? But if they were burning the next, either in the desert or on fire, they might have already died from hypothermia or suffocation from the ice? Dunno.
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B,,,Brainliest please?
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In the case of the Hardwood floor vacuum, you have to use a vacuum cleaner to clean hardwood floors. If you use a hard-bristled broom, it can damage the exterior of Hardwood floors. On the other hand, the vacuum creates less airborne dust and doesn't damage the surface of hardwood floors.When done correctly, the vacuuming process can remove more soil from a floor than a dust mop or broom. ... “The vacuum sucks up and removes all the dust, even the fine dust. It removes all the soil.” Vacuums typically do a better job than mops at reaching dirt in cracks and corners
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hope this helps
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d. ΔG°rxn is positive and the reaction is spontaneous in the reverse direction.
Explanation:
∵ ΔG°rxn = - RTlnK.
When lnK = negative, ΔG°rxn = - RT(- Ve).
∴ ΔG°rxn is positive.
When ΔG°rxn is:
negative: the reaction is spontaneous in the forward direction.
zero: the reaction is at equilibrium.
positive: the reaction is non-spontaneous in the forward direction and spontaneous in the reverse direction.
So, the right choice is:
d. ΔG°rxn is positive and the reaction is spontaneous in the reverse direction.
