Answer:
"A", "water changes from a gas to a solid to a liquid", according to this phase diagram, at at 0°C, as pressure is increased from 0atm to 10atm.
Explanation:
The question asks what happens at 0°C, as pressure is increased from 0atm to 10atm.
According to the question, the temperature is held constant. The pressure changes. In the phase diagram, we find the temperature 0°C on the horizontal axis, and all points where the temperature are 0°C are along that vertical line.
Since the pressure starts at 0atm and increases to 10atm, we start at the bottom, and move upward along that line, to see what phases of matter the substance changes to.
At the bottom, it is initially in a "gas" phase. As it moves up, it transitions to a "solid" phase. Later, as it continues moving up, it changes again into a "liquid" phase.
Thus, the answer would be "A", "water changes from a gas to a solid to a liquid", according to this phase diagram, at at 0°C, as pressure is increased from 0atm to 10atm.
Answer:
Please find how these data prove the law of multiple proportions below
Explanation:
The law of multiple proportions was proposed by an English chemist called John Dalton. The law states that when two elements combine and to form more than one compound. The weights/masses of the second element in the two compounds, which combines with a fixed ratio of the first element, is in a simple whole number ratio.
In this question, Nitrogen is said to combine with oxygen to give three different compounds as follows:
A) laughing gas containing 63.65% nitrogen i.e. 0.6365g
This means that the mass of oxygen will be (1-0.6365) = 0.3635g
B) colorless gas containing 46.68% nitrogen i.e. 0.4668g
This means that the mass of oxygen will be 0.5332g
C) brown toxic gas containing 30.45% nitrogen i.e. 0.3045g
This means that the mass of oxygen will be 0.6955g
The ratios of oxygen in the three compounds is therefore:
0.3635: 0.5332: 0.6955
Divide this ratio by the smallest number (0.3635)
0.3635/0.3635 = 1
0.5332/0.3635 = 1.467
0.6955/0.3635 = 1.913
Multiply this ratio by 2, we have:
2: 2.9 : 3.8
Hence, the simple whole number ratio is 2:3:4.
This proves the law of multiple proportions that oxygen is in simple whole number ratio in the three different compounds.
Answer:
A - Increase (R), Decrease (P), Decrease(q), Triple both (Q) and (R)
B - Increase(P), Increase(q), Decrease (R)
C - Triple (P) and reduce (q) to one third
Explanation:
<em>According to Le Chatelier principle, when a system is in equilibrium and one of the constraints that affect the rate of reaction is applied, the equilibrium will shift so as to annul the effects of the constraint.</em>
P and Q are reactants, an increase in either or both without an equally measurable increase in R (a product) will shift the equilibrium to the right. Also, any decrease in R without a corresponding decrease in either or both of P and Q will shift the equilibrium to the right. Hence, Increase(P), Increase(q), and Decrease (R) will shift the equilibrium to the right.
In the same vein, any increase in R without a corresponding increase in P and Q will shift the equilibrium to the left. The same goes for any decrease in either or both of P and Q without a counter-decrease in R will shift the equilibrium to the left. Hence, Increase (R), Decrease (P), Decrease(q), and Triple both (Q) and (R) will shift the equilibrium to the left.
Any increase or decrease in P with a commensurable decrease or increase in Q (or vice versa) with R remaining constant will create no shift in the equilibrium. Hence, Triple (P) and reduce (q) to one third will create no shift in the equilibrium.
Answer:
Positive acceleration involves speeding up, while negative acceleration involves slowing down.
Explanation:
I am so sorry if I was wrong!
Negative charge
(+1)+(0)+(-1)+(-1)= -1
