Answer:
D
Explanation:
PV=nRT
n=nx + my
n=3mol+3mol
n=6mol
T=120+273=393K
P=nRT/V
P=6×0.0821×393/1
P=193atm
1atm=1.01325×10^5Pa
193atm=xPa
x=1.96×10^7Pa
Answer and explanation;
Coal has aromatic hydrocarbons with high molar mass and has a high ratio of carbon to hydrogen. Burning coal produces more soot than burning other fossil fuels does because of it.
Fossil fuel mixtures of hydrocarbons that formed from the remains of plants or animals. Burning fossil fuels increases the amount of carbon dioxide in the atmosphere. This increase may affect temperatures, amounts of rain and sea levels worldwide. Some sulfur and nitrogen are in fossil fuels, and air contains nitrogen.
Coal produces more soot than other fossil fuels as it is a carbon-rich fossil fuel, where some carbon atoms form soot particles during burning. The combustion of coal is less efficient, producing more particulates and carbon dioxide per unit energy output, thus contributing to air pollution and global warming.
Coal typically produces more soot than other fossil fuels when burned due to its composition. Unlike natural gas or oil, coal is a carbon-rich fossil fuel. When this carbon burns, it reacts with oxygen to form carbon dioxide, but not all carbon atoms complete this reaction. Some form tiny carbon particles or soot instead. These soot particles consist of amorphous carbon, which has a disorganized and complex structure, leading to the dark, dust-like quality of soot.
Historically, the burning of coal was ubiquitous in the Industrial Age, leading to severe air pollution with coal soot covering surfaces in industrial cities. This is because the combustion of coal is less efficient than other fossil fuels, producing more particulates and carbon dioxide per unit energy output. Consequently, the combustion of fossil fuels, and coal in particular, contributes to the greenhouse effect and global warming. In fact, coal-fired power plants produce the greatest amount of CO₂ per unit energy output compared to natural gas or oil, making it the least efficient fossil fuel in terms of greenhouse gas emissions.
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(2) 2 electrons in the first shell
(3) 3 electron shells
(4) 22 neutrons
To solve this we must be knowing each and every concept related to Enthalpy. Therefore, 10,148KJ/mol is the ΔH for formation for the reaction 16CO(g) + 18HO(g) 2CH(l) + 25O(g)
Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances. Specific heat capacity of a substance is the amount of heat required to raise the temperature by one degree Celsius of one gram of a substance.
The balanced equation for the given chemical reaction can be given as
16CO(g) + 18HO(g) 2CH(l) + 25O(g)
ΔH for formation= 10,148KJ/mol
Therefore, 10,148KJ/mol is the ΔH for formation for the reaction 16CO(g) + 18HO(g) 2CH(l) + 25O(g)
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Answer:
10,148
Explanation:
A.C2H4O2
B.C3H6O3
C.CH2O2
D.C5H10O5
E.C6H12O6
Answer: Compounds having the same empirical formula are:
Explanation:
Empirical formula tells us about the proportion of the elements present in the compound but it do not tells us about the actual numbers of atoms of the elements present in the compound.
In given empirical formula that is proportion of C:H:O = 1:2:1
In the proportion of C:H:O =2:4:2= 1:2:1
In the proportion of C:H:O =3:6:3= 1:2:1
In the proportion of C:H:O =1:2:2= 1:2:2
In the proportion of C:H:O =5:10:5= 1:2:1
In the proportion of C:H:O =6:12:6= 1:2:1
Compounds having the given empirical formula are:
The chemical compounds that have the empirical formula are:
A.C2H4O2
B.C3H6O3
D.C5H10O5
E.C6H12O6
An empirical formula can be defined as a formula that gives the smallest and simplest whole number ratio of the atoms of a chemical element found in a chemical compound.
The simplest whole number ratio of the atoms of is:
= 1:2:1
For :
= 2:4:2 = 1:2:1
For :
= 3:6:3 = 1:2:1.
For :
= 1:2:2 = 1:1:1 (Incorrect)
For :
= 5:10:5 = 1:2:1
For :
= 6:12:6 = 1:2:1
Note:
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