Answer:
294,3
Explanation:

While g = 9,81 m/s^2 then:
[J]
Explanation:
Arsenic is a solid chemical element that is used especially in wood preservatives, alloys, and semiconductors and is extremely toxic in both pure and combined forms.
A poisonous trioxide As2O3 or As4O6 of arsenic is used especially as an insecticide or weed killer.
Answer:
The net ionic equation is: 3CO₃²⁻(aq) + 2Fe³⁺(aq) → Fe₂(CO₃)₃(s).
Explanation:
- For the mentioned reaction:
- We have the Molecular reaction:
3(NH₄)₂CO₃(aq) + 2Fe(NO₃)₃(aq) → Fe₂(CO₃)₃(s) + 6NH₄NO₃(aq)
- We have the total ionic reaction:
6NH₄⁺(aq) + 3CO₃²⁻(aq) + 2Fe³⁺(aq) + 6NO₃⁻ → Fe₂(CO₃)₃(s) + 6NH₄⁺(aq) + 6NO₃⁻(aq).
<em>NH₄⁺(aq) and NO₃⁻(aq) are spectator ions that are not changed through the reaction and still dissolved in the medium, so they can be omitted to get the net ionic equation.</em>
<em />
- So, the net ionic equation is:
<em>3CO₃²⁻(aq) + 2Fe³⁺(aq) → Fe₂(CO₃)₃(s).</em>
Answer : The value of equilibrium constant (K) is, 
Explanation :
First we have to calculate the concentration of 

and,

and,

Now we have to calculate the value of equilibrium constant (K).
The given chemical reaction is:

The expression for equilibrium constant is:
![K=\frac{[N_2O]^2}{[N_2][O_2]}](https://tex.z-dn.net/?f=K%3D%5Cfrac%7B%5BN_2O%5D%5E2%7D%7B%5BN_2%5D%5BO_2%5D%7D)
Now put all the given values in this expression, we get:


Thus, the value of equilibrium constant (K) is, 
A perfect gas, commonly known as an ideal gas, would be a gas that, in physical behavior, conforms towards the general gas law, which would be a <u><em>specific, idealized relationship between pressure, volume, and temperature,</em></u> and further calculation can be defined as follows:
For question a:
![q=\int C_p dT=\int^{200+273K}_{25+273 K} [20.17 + 0.3665 (\frac{T}{K})] dT JK^{-1}\\\\](https://tex.z-dn.net/?f=q%3D%5Cint%20C_p%20dT%3D%5Cint%5E%7B200%2B273K%7D_%7B25%2B273%20K%7D%20%5B20.17%20%2B%200.3665%20%28%5Cfrac%7BT%7D%7BK%7D%29%5D%20dT%20JK%5E%7B-1%7D%5C%5C%5C%5C)
![=[(20.17)T +\frac{1}{2}(0.3665)\times (\frac{T^2}{K})]^{473K}_{298K}\ JK^{-1}\\\\=[(20.17)\times(473-293) +\frac{1}{2}(0.3665)\times (473^2-293^2)]\ J\\\\=[(20.17)\times(180) +\frac{1}{2}(0.3665)\times (223729-85849)]\ J\\\\=[3630.6 +(0.18325)\times (137880)]\ J\\\\=[3630.6 +25266.51]\ J\\\\=[28897.11]\ J\\\\=[28.8 \times 10^{3}] \ J\\\\](https://tex.z-dn.net/?f=%3D%5B%2820.17%29T%20%2B%5Cfrac%7B1%7D%7B2%7D%280.3665%29%5Ctimes%20%28%5Cfrac%7BT%5E2%7D%7BK%7D%29%5D%5E%7B473K%7D_%7B298K%7D%5C%20JK%5E%7B-1%7D%5C%5C%5C%5C%3D%5B%2820.17%29%5Ctimes%28473-293%29%20%2B%5Cfrac%7B1%7D%7B2%7D%280.3665%29%5Ctimes%20%28473%5E2-293%5E2%29%5D%5C%20J%5C%5C%5C%5C%3D%5B%2820.17%29%5Ctimes%28180%29%20%2B%5Cfrac%7B1%7D%7B2%7D%280.3665%29%5Ctimes%20%28223729-85849%29%5D%5C%20J%5C%5C%5C%5C%3D%5B3630.6%20%2B%280.18325%29%5Ctimes%20%28137880%29%5D%5C%20J%5C%5C%5C%5C%3D%5B3630.6%20%2B25266.51%5D%5C%20J%5C%5C%5C%5C%3D%5B28897.11%5D%5C%20J%5C%5C%5C%5C%3D%5B28.8%20%5Ctimes%2010%5E%7B3%7D%5D%20%5C%20J%5C%5C%5C%5C)
For question b:
In this question, the energy and enthalpy of a perfect gas depend on temperature alone, therefore
and
as above at constant volume
and
so,
.
Learn more:
brainly.com/question/4270867