Why does snow remain on mountain slopes even when daytime temperatures are higher than the freezing...
Why does snow remain on mountain slopes even when daytime temperatures are higher than the freezing temperature?
Homework Answers
There is an enormous amount of energy required for a certain substance's phase change. Ice is a solid form of water formed by fusion of water molecules. And for the snow to melt an enormous amount of energy is required, even if the air surrounding the snow is above the freezing point. So if the air is warmer, heat exchange can be easier and the snow can melt faster.
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Why does snow remain on mountain slopes even when daytime temperatures are higher than the freezing...
a) Why does the temperature of pure cyclohexane remain constant during freezing? b) Why does the...
a) Why does the temperature of pure cyclohexane remain constant during freezing? b) Why does the temperature of the solution during freezing not remain constant after the addition of solute to cyclohexane?
Snow in the winter can slowly disappear even when the temperature is consistently below freezing. How...
Snow in the winter can slowly disappear even when the temperature is consistently below freezing. How do you account for this observation? (Hint: this phenomenon also explains why ice cubes appear to “shrink” in the freezer)
where does hot rising air get its heat from? Why does air get colder as it...
where does hot rising air get its heat from? Why does air get colder as it ascends, if it is getting closer to the sun? If this is because air is moving away from the earth (a possible source of heat) why is it that snow can be on the ground when ambient temperature is above freezing point? Water is a better conductor of heat than air is
Explain why the samples with larger amounts of solute precipitated at significantly higher temperatures than those...
Explain why the samples with larger amounts of solute precipitated at significantly higher temperatures than those with less solute. Discuss your answer in terms of the physical interaction between the solute and solvent.
b. Does the resistance of the electric light bulb increase, decrease or remain constant as the...
b. Does the resistance of the electric light bulb increase, decrease or remain constant as the power, I*V, is increased? Consult your data table. Does the temperature of the light bulb filament increase, decrease or remain constant as c. the power, IV, to the bulb is increased? (Hint: Associate a higher electrical power with 3. Does the diode conduct symmetrically when the current flows in the forward (positive 4. Why is it that we always connect a voltmeter in parallel...
why does boiling water turn to snow when thrown in the air on a cold day,...
why does boiling water turn to snow when thrown in the air on a cold day, but cool water does not?
Why does benzene have a much higher boiling point (80。c) than hexane (69。c), even though they...
Why does benzene have a much higher boiling point (80。c) than hexane (69。c), even though they have the same number of carbons? A) Benzene is much more polar than hexane which enhances the attractive forces between molecules and raises the boiling point. B) Benzene has fewer hydrogens than hexane. C) Benzene is planar and has delocalized electron density which increases the attractive forces between molecules and raises the boiling point. D) Benzene can covalently bond to another benzene molecule which...
06. High-altitude mountain climbers do not eat snow, but always melt To see why, calculate the...
06. High-altitude mountain climbers do not eat snow, but always melt To see why, calculate the energy absorbed from your body if you: t tirst with a stove (a) eat 1.0 kg of snow at 1.5" C which your body warms to body ten (b) melt 1.0 kg of snow -15° C using a stove and drink the resulting t 2°C, which your body has to warm to 37°C. 1,0 kg of water at An iron boiler of mass 180...
2.21 Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCI) (19.4°C...
2.21 Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCI) (19.4°C vs. -85°C), even though HF has a lower molecular weight
2.21 Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCI) (19.4°C vs. -85°C), even though HF has a lower molecular weight
Why does saltwater have more carbonates and therefore higher alkalinity than freshwater?
Why does saltwater have more carbonates and therefore higher alkalinity than freshwater?
b. Does the resistance of the electric light bulb increase, decrease or remain constant as the power, I*V, is increased? Consult your data table. Does the temperature of the light bulb filament increase, decrease or remain constant as c. the power, IV, to the bulb is increased? (Hint: Associate a higher electrical power with 3. Does the diode conduct symmetrically when the current flows in the forward (positive 4. Why is it that we always connect a voltmeter in parallel...
06. High-altitude mountain climbers do not eat snow, but always melt To see why, calculate the energy absorbed from your body if you: t tirst with a stove (a) eat 1.0 kg of snow at 1.5" C which your body warms to body ten (b) melt 1.0 kg of snow -15° C using a stove and drink the resulting t 2°C, which your body has to warm to 37°C. 1,0 kg of water at An iron boiler of mass 180...
2.21 Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCI) (19.4°C vs. -85°C), even though HF has a lower molecular weight
2.21 Explain why hydrogen fluoride (HF) has a higher boiling temperature than hydrogen chloride (HCI) (19.4°C vs. -85°C), even though HF has a lower molecular weight
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