Which of the following statement about latent heat of vap...
Which of the following statement about latent heat of vaporization is correct? It
weakens the adhesive force between molecules of a liquid and those of its container
breaks completely the force of attraction completely between the molecules of a liquid
add to the heat content of a liquid
increases the cohesive forces between liquid molecules
Correct answer is B
No explanation has been provided for this answer.
Which of the following is true of the loudness of sound? It ...
An inclined plane which makes an angle of 30o with the horizontal has a velocity ratio of ...
The ground is always cold at night because the ...
A source of sound produces waves in air of wavelength 1.65m. If the speed of sound in air ...