I think so, <span> how much of all chemistry is to do with numbers? A lot! So being good at mathematics makes a huge aspect of chemistry so much easier but if you aren't mathematical then you can work at it and become reasonably proficient at it.</span>
Answer:
Solution:-
The gas is in the standard temperature and pressure condition i.e. at S.T.P
Therefore,
V
i
=22.4dm
3
V
f
=?
As given that the expansion is isothermal and reversible
∴ΔU=0
Now from first law of thermodynamics,
ΔU=q+w
∵ΔU=0
∴q=–w
Given that the heat is absorbed.
∴q=1000cal
⇒w=−q=−1000cal
Now,
Work done in a reversible isothermal expansion is given by-
w=−nRTln(
V
i
V
f
)
Given:-
T=0℃=273K
n=1 mol
∴1000=−nRTln(
V
i
V
f
)
⇒1000=−1×2.303×2×273×log(
22.4
V
f
)
Explanation:
Coffee cools more quickly in a ceramic mug than in a Styrofoam
cup.
Explanation:
Styrofoam is a good insulator, thus for keeping the coffee warm for longer, it is a good choice than ceramic. The process involved in the control of heat dissipation employs the fact that the vapours in the form of gas are entrapped within, they lessen the conduction process between the molecules as a result molecules do not collide hence no energy releases or exchange takes place.
Styrofoam cups are made up of polystyrene foam. As a result of high insulation at styrofoam body conduction is not possible so coffee is warmer for longer.
Answer:
Outer electrons.
Explanation:
All bonds are localized bonds formed between two atoms by the donation of electrons from each atom.
Answer : The molarity of an acetic acid solution is, 0.0338 M
Explanation :
Formula used :
where,
are the molarity and volume of acetic acid.
are the molarity and volume of NaOH.
We are given:
Putting values in above equation, we get:
Hence, the molarity of an acetic acid solution is, 0.0338 M
