The latent heat of vaporization of a substance is the amount of energy associated with doing which of the following to 1 kg of t
he substance?
(PLEASE HELP NEED ANSWER ASAP!!)
(PLEASE HELP NEED ANSWER ASAP!!)
2 answers:
Answer:
B) Boiling it at its boiling point
Explanation:
As we know that the heat required to convert the given substance from liquid to vapor at its boiling point is known as latent heat of vaporization
So here we know that
here we know that
so it is known as the heat required to boil the given substance of unit mass at its boiling point
so correct answer will be
B) Boiling it at its boiling point
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Answer:
Decreases by times
Explanation:
The intensity of a sound is defined as the energy of the sound that is flowing in an unit time through the unit area which is in the direction that is perpendicular to the direction of the sound waves movement.
The intensity of energy is described by the inverse square law. It states that the intensity varies inversely with the distance square of the distance.
In other words, the sound intensity decreases as inversely proportional to the squared of the distance. i.e.
In the context when the distance was 3 m, the intensity of the sound was =
But when the distance became 6 cm or 0.06 m, the sound intensity decreases by =
= times