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3 years ago

sound travels slower in colder air than it does in warmer air why does the speed of sound depend on air temperature

Chemistry

2 answers:

irinina [24]3 years ago

7 0

Answer:

Air molecules have more energy at higher temperature which means they vibrate faster

Marta_Voda [28]3 years ago

6 0

Answer:

Explanation:

The speed of sound in the air mainly depends on temperature. At high altitudes, where it is much colder, sound travels slower. The higher the temperature, the faster the air molecules are moving to begin with, and the quicker they bump into each other as a sound wave passes through.

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An insulated piston-cylinder device contains 1 L of saturated liquid water at pressure of 150 kPa. An electric resistance heater

miskamm [114]

Answer:

Explanation:

In this problem,

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so the entropy change will be due to latent heat at 150 kPa and also due to temperature change at the super heated state.

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2 years ago

Calculate the hydroxide ion concentration in an aqueous solution with a poh of 9.85 at 25°c.

LenaWriter [7]

The hydrogen ion concentration is calculated as follows

Ph + POh =14
ph= 14-9.85= 4.15

anti -H+

=anti (-4.15) = 7.07 x10^-5 moles per liter

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3 years ago

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Andrei [34K]

Answer:

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3 years ago

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Strike441 [17]

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3 years ago

the mass of a single potassium atom is 6.50×10-23 grams. How many potassium atoms would there be in 114 milligrams of potassium?

Nataly [62]

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2 years ago