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jolli1 [7]
3 years ago
11

ethane, c2h6, has a boiling point of -89°c at standard pressure. ethanol, c2hsoh, has a much higher boiling point than ethane at

standard pressure. at stp. ethane is a gas and ethanol is a liquid. identify the class of organic compounds to which ethanol belongs. a liquid boils when the vapor pressure of the liquid equals the atmospheric pressure on the surface of the liquid. based on table h, what is the boiling point of ethanol at standard pressure? compare the intermolecular forces of the two substances at stp. [1]
Chemistry
1 answer:
Kipish [7]3 years ago
4 0
Ethanol is a polar molecule containing hydrogen bonds at the OH groups. These bonds are much stronger and therefore take much more energy to break, hence the higher melting and boiling points

Ethane on the other hand is non-polar as it is a hydrocarbon and only contains London Dispersion forces between molecules, which are the weakest of the intermolecular forces, meaning it is easy to break them.
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The weight of a sack potato in india is 50kgf. will the weight increase or decrease in bhutan. why​
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Assume that the sack was initially close to the sea level. Its weight will increase even though its mass stays the same.

Explanation:

The weight of an object typically refers to the size of the planet's gravitational attraction (a force) on this object. That's not the same as the mass of the object. The weight of an object at a position depends on the size of the gravitational field there; on the other hand, the mass of the object is supposed to be same regardless of the location- as long as the object stays intact.

Let g denote the strength of the gravitational field at a certain point. If the mass of an object is m, its weight at that point will be m \cdot g.

Indeed, g \approx 9.81\; \rm N \cdot kg^{-1} on many places of the earth. However, this value is accurate only near the sea level. The equation for universal gravitation is a more general way for finding the strength of the gravitational field at an arbitrary height. Let G denote the constant of universal gravitation, and let M denote the mass of the earth. At a distance r from the center of the earth (where

\displaystyle g \approx \frac{G \cdot M}{r^2}.

The elevation of many places in Bhutan are significantly higher than that of many places in India. Therefore, a sack of potato in Bhutan will likely be further away from the center of the earth (larger r) compared to a sack of potato in India.

Note, that in the approximation, the value of g is (approximately, because the earth isn't perfectly spherical) inversely proportional to the distance from the center of the planet. The gravitational field strength

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6 0
3 years ago
For the reaction: N2O5(g) \longrightarrow⟶ 2NO2(g) + 1/2O2(g)
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The given equation from the problem above is already balance,
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Since, in every mole of N2O5 consumed, 2 moles of NO2 are formed, we can answer the problem by multiplying the given rate, 7.81 mol/L.s with the ratio.
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                       = 15.62 mol/L.s
The answer is the rate of formation of NO2 is approximately 15.62 mol/L.s. 
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