Suppose you set a glass of water in direct sunlight for 2 hours and measure its temperature every 10 min . What type of graph wo
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<h3>→XxKim02xX</h3>
Answer : The correct option is, (1) lower
Explanation :
Formula used for lowering in freezing point :
where,
= change in freezing point
= freezing point constant
m = molality
i = Van't Hoff factor
According to the question, we conclude that the molality of the given solutions are the same. So, the freezing point depends only on the Van't Hoff factor.
Now we have to calculate the Van't Hoff factor for the given solutions.
(a) The dissociation of will be,
So, Van't Hoff factor = Number of solute particles = 1 + 1 = 2
(b) The dissociation of will be,
So, Van't Hoff factor = Number of solute particles = 1 + 2 = 3
The freezing point depends only on the Van't Hoff factor. That means higher the Van't Hoff factor, lower will be the freezing point and vice-versa.
Thus, compared to the freezing point of 1.0 M at standard pressure, the freezing point of 1.0 M
at standard pressure is lower.
Answer:
Explanation:
hello,
the combined gas law equation is given as;
This combined gas law is gotten from the combination of Charles' law, Boyle's law and the Pressure law.
At constant pressure(this means the pressure is unchanged or fixed and this means the pressure is eliminated), we have:
At constant volume(we eliminate the volume since it is fixed or unchanged), we have;
At constant temperature (we also eliminate temperature), we have
.
thus from the options provided in the question the right answer will be