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IRISSAK [1]
3 years ago
9

Which temperature represents the highest average kinetic energy of the particles in a sample of matter ?

Chemistry
1 answer:
Ymorist [56]3 years ago
6 0
Average kinetic energy is proportional to absolute temperature. This means that the higher the temperature the higher the kinetic energy.

This equation reflects that: KE avg = [3/2]kT, where k is the Boltzman constant.

So, you just have to checkg which of the given temperatures is the highest one..

Of course to compare you need to have them all in the same unit system.

Use absolute temperatures in Kelvin.

=> 27°C + 273.15 = 300.15 K.

Then, the highest temperature is 27°C and that represents the highest kinetic energy.

Answer is the option c. 27°C
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How many hydrogen atoms are in 35.0 grams of hydrogen gas? How many hydrogen atoms are in 35.0 grams of hydrogen gas? 4.25 × 102
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Answer: 2.12\times 10^{25} atoms of hydrogen are there in

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To calculate the moles, we use the equation:

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1 mole of hydrogen (H_2) = 2\times 6.023\times 10^{23}=12.05\times 10^{23} atoms

17.5 mole of hydrogen (H_2) = \frac{12.05\times 10^{23}}{1}\times 17.5=2.12\times 10^{25} atoms

There are 2.12\times 10^{25} atoms of hydrogen are there in

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