Answer:
(a)
(b)
Explanation:
Hello,
In this case, since the both gases behave ideally, with the given information we can compute the moles of He in A:
Thus, since the final pressure is 3.60 bar, we can write:
The moles of helium could be computed via solver as:
Or algebraically:
In such a way, the volume of the compartment B is:
Finally, he mole fraction of He is:
Regards.
Answer:
You can pick any two from these:
- Visible light: red, orange, yellow, green, blue, violet.
Explanation:
Electromagnetic energy is the is the energy that travels in form of transverse waves produced by the perpendicular oscilations electrical and magnetic fields.
An important characteristic of electromagnetic energy (waves) is that they do not need a material medium to propagate (travel) but they can travel in vacuum. That is how the sun light gets to the Earth through space.
Depending of the wavelength and frequency (which are inversely related) each electromagnetic wave has different amount of energy, involves particular risks and finds different applications.
Among other uses, we can mention: radio waves and mcirowaves are useful for communications, in infrared transmits heat, visible light permits see the objects, ultraviolet may be used in security systems, x-rays and gamma rays have medical uses.
Answer:
Matter
Explanation:
Solids, liquids, and gases are the three types of matter that can be found in the world around us today. In solids, all of the particles are close together. They move more in liquids, but they are spread out in gas.
Answer:
A. Solids can only change shape if forced to make a change
Explanation:
A solid substance is one of the states of matter.
Matter is anything that has weight and occupies a definite space.
There are three states of matter commonly known: solids, liquids and gases.
- Solids have a fixed shape and definite volume.
- Their crystals are well ordered about a fixed point.
- It is only when a force is applied that their well ordered arrangement is destroyed and they are forced to make a change.