Fe2O3 + 3CO --------> 2Fe + CO2
1 : 3 : 2 : 3
13.3 <--- 40 ------> 26.6 ---> 40 ( mol)
n = m/M
m CO2 = n.M = 13.3 . 40 = 532 ( g)
p/s : i hope that this will help ( cause i'm not really good at english :}}} )
Answer:
83ºC
Explanation:
A bomb calorimeter is an instrument used to measure the heat that release or absorb a particular reaction.
The reaction of combustion of propane is:
C₃H₈ + 5O₂ → 3 CO₂ + 4 H₂O ΔH = -2222kJ/mol
<em>1 mole of propane release 2222kJ</em>
10.0g of propane (Molar mass: 44.1g/mol).
10.0g ₓ (1mol/ 44.1g) = <em>0.227 moles of C₃H₈</em>
If 1 mole of propane release 2222kJ, 0.227moles will release (Release because molar heat is < 0):
0.227 moles of C₃H₈ ₓ (2222kJ / mol) = 504kJ.
Our calorimeter has a constant of 8.0kJ/ºC, that means if there are released 8.0kJ, the bomb calorimeter will increase its temperature in 1ºC. As there are released 504kJ:
504kJ ₓ (1ºC / 8.0kJ) = 63ºC will increase the temperature in the bomb calorimeter.
As initial temperature was 20ºC, final temperature will be:
<h2>83ºC</h2>
The answer to this question depends on the specific context in which urban and industrial development is taking place. However, in general, these sectors often practice improper and mismanaged sewage systems due to a lack of understanding or awareness of the potential environmental impacts of their activities.
Urban and Industrial development:
An agrarian economy becomes a manufacturing economy through the process of industrialization. Manual and specialised employees are replaced by assembly lines and mass production. In the past, this process has sparked urbanisation by generating economic expansion and employment possibilities that entice people to live in cities.
When one or more factories are built in an area, urbanisation usually starts since there is a great need for factory workers. The factories are subsequently followed by other enterprises, like those that produce buildings, sell goods online, and offer services to consumers. As a result, there are more occupations created and housing needs are increased, creating an urban area.
In many cases, engineers and other technical professionals are present in these sectors but are not consulted or involved in the decision-making process regarding sewage systems. This can lead to a situation in which the systems are not designed or operated in an environmentally sustainable manner.
To learn more about Urban and Industrial
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Rate of Sulfur dioxide : 2730.44 mL/s
<h3>Further explanation </h3>
Graham's law: <em>the rate of effusion of a gas is inversely proportional to the square root of its molar masses or </em>
the effusion rates of two gases = the square root of the inverse of their molar masses:
or
MW of N₂ = 28 g/mol
MW SO₂ = 64 g/mol
Answer:
b. Cardiac muscles.
Explanation:
These muscles are very thick in order to pump oxygenated blood to all body parts.
