A molecule of an organic compound contains at least one atom of(1) carbon (3) nitrogen
(2) chlorine (4) oxygen
Answers
Answer: (1) carbon
Explanation: Organic compounds are those compounds which contains a carbon atom. Nearly all organic compounds contain hydrogen and some of the organic compounds contain oxygen. Example: Glucose(), Methane (
)
Inorganic compounds are those compounds which do not contain a carbon atom. Example :
Final answer:
An organic compound, by definition, must contain at least one carbon atom. Other elements such as nitrogen, chlorine, and oxygen can also be part of organic compounds, but they're not a requirement. An example of an organic compound is methane, which contains one carbon atom and four hydrogen atoms. The correct option is 1.
Explanation:
An organic compound is a type of molecule characterized by its carbon-based structure. By definition, an organic compound contains at least one carbon atom, which is option (1) in your question.
Although organic compounds can also contain atoms of nitrogen, chlorine, oxygen, and several other elements, these are not a requisite for a compound to be considered organic. The key component, fundamentally speaking, is carbon.
For instance, methane (CH4) is an example of an organic compound. It includes one carbon atom and four hydrogen atoms.
On the other hand, carbon dioxide (CO2), which contains one carbon atom and two oxygen atoms, is not considered an organic compound, even though it contains carbon, because it doesn't contain any carbon-hydrogen bonds, which are typically found in organic compounds.The correct option is 1.
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research
intuition
Answers
Answer:
The given blank can be filled with research.
Explanation:
The procedure of looking for facts, which will lead to the truth is known as research. In the absence of research one cannot conclude that the facts or statements are right. Research is illustrated as a systematic and creative work performed to enhance the stock of knowledge, comprising knowledge of culture and society, humans, and the application of this knowledge stock to device novel uses.
b. False
Answers
Answers
Answer:
The amount of randomness in a system.
Explanation:
took test
Answer:
entrophy is a measure of the degree of randomness or disorder of a system
Answers
-- Increase the pressure on it.
-- Lower its temperature.
The liquefication is faster and easier if you do both.
The model most likely represents a reaction which
Select one:
a. takes place when atoms combine
b. takes place when atoms become inactive
c. does not produce energy in the sun
d. does not produce energy in nuclear power plants
Answers
Answer: b: takes place when atoms become inactive
Explanation: the model described above is a nuclear fission reaction, a reasonably controlled reaction that releases energy and is employed in nuclear power plants. In these reactions one Atom is split into two lighter ones and there's a resultant release of energy in the process. The original Atom becomes depleted (inactive) as is the case with Uranium 235.
This reaction is opposed to fusion reactions that occur in nature e.g. the sun, and are basically uncontrollable — involving the combination of two atoms into one.
B. -270 kJ
C. 780 kJ
D. -170 kJ
Answers
The value of ΔG is -170 kJ/mol at 1000 K if ΔH is -220 kJ/mol and ΔS is -0.05 kJ/mol K.
Hence, option (D) is correct answer.
What is Gibbs Free energy ?
Gibbs free energy is also called free energy, free enthalpy, Gibbs energy which is used to measure the capacity of a system to do work in a thermodynamic system. It is denoted by the symbol 'G'.
How to calculate the Change in free energy (ΔG) ?
To calculate the change in free energy as
ΔG = ΔH - T ΔS
where,
ΔG = Change in free energy
ΔH = Enthalpy change
T = Temperature in Kelvin
ΔS = Entropy change
Now put the value in above formula we get
ΔG = ΔH - T ΔS
= -220 kJ/mol - (1000 K) (-0.05 kJ/mol K)
= -220 + 50
= -170 kJ/mol
Thus, from above conclusion we can say that The value of ΔG is -170 kJ/mol at 1000 K if ΔH is -220 kJ/mol and ΔS is -0.05 kJ/mol K.
Hence, option (D) is correct answer.
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(delta)G = (delta)H - T (delta) S
Plugging in the given values:
(delta)G = -220 kJ/ mol - (1000K) (-0.05 kJ/mol K)
(delta)G = -170 kJ/mol
If we take a basis of 1 mol, the answer is
D. -170 kJ