If theres a mixture of components we can calculate the mole fraction
mole fraction can be calculated as follows
mole fraction of component =

number of moles of ethanol - 3.00 mol
total number of moles in mixture - 3.00 + 5.00 = 8.00 mol
mole fraction of ethanol =

mole fraction of ethanol is 0.375
The Jaeger reading cards are used to test near vision. It's usually held by a patient at a certain distance from the eye depending on the size being read. The smallest letters one can read is what determines their visual acuity!
Answer:
Electromechanical waves are defined as the waves which resulting from the interaction of magnetic fields, and oscillating electric. Some examples of these electromechanical wave are infrared, microwave, ultraviolet, visible, etc.
When these waves are arranged in the order of increasing wavelength then it's called an electromagnetic spectrum, and
spectral regions in order of increasing wavelength, we will get is:
Ultraviolet<visible<infrared<microwave.
Answer:
A
Explanation:
surface on which the object is moved or the nature of the surface .i.e. rough surface ,smooth surface ,liquids