Answer:
<h2>26.67 m/s</h2>Explanation:
The speed of the car can be found by using the formula
d is the distance
t is the time taken
From the question we have
We have the final answer as
<h3>26.67 m/s</h3>Hope this helps you
Which substance contains only 1 kind of atom
2 answers:
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The question is incomplete, complete question is :
The frequency factors for these two reactions are very close to each other in value. Assuming that they are the same, compute the ratio of the reaction rate constants for these two reactions at 25°C.
Activation energy of the reaction 1 , = 14.0 kJ/mol
Activation energy of the reaction 2, = 11.9 kJ/mol
Answer:
0.4284 is the ratio of the rate constants.
Explanation:
According to the Arrhenius equation,
The expression used with catalyst and without catalyst is,
where,
= rate constant reaction -1
= rate constant reaction -2
Activation energy of the reaction 1 , = 14.0 kJ/mol = 14,000 J
Activation energy of the reaction 2, = 11.9 kJ/mol = 11,900 J
R = gas constant = 8.314 J/ mol K
T = temperature =
Now put all the given values in this formula, we get
0.4284 is the ratio of the rate constants.
The correct answer choice is CO₂ (B)
Rainwater naturally contains acids derived from carbon dioxide in the air and reacts with water vapor to form weak acids
H₂O + CO₂ ---> H₂CO₃
<h3><em>Further Explanation</em></h3>Rainwater can cause damage to buildings, animals or plants due to acid rain
Acid rain occurs because other gases in the air mix with toxic gases to form acids
Rainwater naturally contains acids derived from carbon dioxide in the air and reacts with water vapor to form weak acids
H₂O + CO₂ ---> H₂CO₃
However, due to exhaust gases from industry, motor vehicles, or power plants that use fossil fuels containing sulfur to produce sulfur dioxide gas which will produce sulfuric acid
Sulfur combustion from fossil fuels
S + O₂ ----> SO₂
SO₂ produced from this exhaust gas reacts with O₂ oxygen which oxidizes SO₂ to SO₃
SO₂ + O₂ ----> SO₃
SO3 formed reacts with water vapor in the air to produce sulfuric acid as acid rain
SO₃ + H₂O ---> H₂SO₄
To reduce the pollution from this fossil fuel, various studies are now carried out as substitute energy that is more environmentally friendly such as solar energy and so on
<h3><em>Learn more </em></h3>
Acid rain is a secondary pollutant
The impact of from acid rain
Air pollution
Keywords: acid rain, air pollution, SO₃, H₂SO₄, fossil fuel
