Answer:
the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
Explanation:
Hope this helps. :)
The condition of free vaporisation throughout the liquid is called
- <em>(</em><em>4</em><em>)</em><em> </em><em>Boiling</em><em> </em>
<u>We</u><u> </u><u>can</u><u> </u><u>also</u><u> </u><u>define</u><u> </u><u>it</u><u> </u><u>as</u><u> </u><u>Free</u><u> </u><u>vaporisation</u><u> </u><u>throughout</u><u> </u><u>the</u><u> </u><u>liquid</u><u> </u><u>is</u><u> </u><u>called</u><u> </u><u>boiling</u><u>,</u><u> </u><u>basically</u><u> </u><u>its</u><u> </u><u>the</u><u> </u><u>definition</u><u> </u><u>of</u><u> </u><u>boiling</u><u>.</u><u> </u>
<u>*</u><u>Note</u><u> </u><u>that</u><u>:</u><u>-</u><u> </u><u>The</u><u> </u><u>temperature</u><u> </u><u>at</u><u> </u><u>which</u><u> </u><u>vapour</u><u> </u><u>pressure</u><u> </u><u>of</u><u> </u><u>liquid</u><u> </u><u>is</u><u> </u><u>equal</u><u> </u><u>to</u><u> </u><u>external</u><u> </u><u>pressure</u><u> </u><u>is</u><u> </u><u>called</u><u> </u><u>Boiling</u><u> </u><u>temperature</u><u>.</u><u>.</u>
Answer:
Time=345.7 min
Explanation:
It is an example for Faraday's first law of Electrolysis
It states that the amount of substance deposited is directly proportional to the amount of electricity passed.
W=Zit
Z=E/96500
W= E it/96500
And E=58.7(molar mass of Ni)/2(charge on Ni)=29.3
t=W96500/E i
= 29.6x96500/29.3x4.7
= 20742.1 sec
=345.7 min
Answer:
Explanation:Temprature: The average kinetic energy of gas molecules is called temperature.
According to the KMTG the k.E is directly proportional to the absolute temperature. By increasing the temprature the kinetic energy of gas molecules is increased as a result the molecular mortion is also increased,which increase the collision.
VOLUME: It is the space occupied by gas molecules.
According to the KMTG by rise in temprature will increase space between gas molcules which will increase the volume.
PRESSURE: It is the force applied on a unit area.
P=F/A
Unit=N/m^2 or pascal