Answer:
D
Explanation:
Stereoisomers are molecules that have the same molecular formula but different 3-d arrangement of atoms. Three types exist but we are focusing on geometrical cis-trans isomerism here. In a single bond, the molecules can rotate around fixed points and there is no fixed 3-d geometry. In butene and other double-bond-containing molecules (the double bond is signified through the "-ene" suffix and the "-2-" indicates that the double bond begins on the second carbon in the chain), rotational motion is stopped by the double bond. This causes two different types of molecules to occur in nature: cis-2-butene, in which the carbon atom in the chain is on the same side at both ends of the double bond, and trans-2-butene, in which the carbon atom is on opposite sides (like a beach chair if the seat was a double bond). So the stereoisomer of trans-2-butene is cis-2-butene, which is Option D.
Answer:
V₂ = 1.41 L
Explanation:
Given data:
Initial temperature = 35°C (35 +273.15 K = 308.15 K)
Initial volume = 1.5 L
Final temperature = 17°C (17+273.15 K = 290.15 K)
Final volume = ?
Solution:
The given problem will be solve through the Charles Law.
According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.
Mathematical expression:
V₁/T₁ = V₂/T₂
V₁ = Initial volume
T₁ = Initial temperature
V₂ = Final volume
T₂ = Final temperature
Now we will put the values in formula.
V₁/T₁ = V₂/T₂
V₂ = V₁T₂/T₁
V₂ = 1.5 L × 290.15 K / 308.15 k
V₂ = 435.23 L.K / 308.15 k
V₂ = 1.41 L
Answer:
ultra sound is A telescope is B x-ray is C and Micro is D
Explanation:
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