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3 years ago

9

11.You run 100 m in 25 s. If you then run the same distance in less time, does your aver- age speed increase or decrease? Explai

n.

1 answer:

Sergeu [11.5K]3 years ago

5 0

Ur average speed increases bc ur moving faster

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5.70×10^-11 m

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3 years ago

What does density have to do with the cycling of matter in earths interior

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3 years ago

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3 years ago

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3 years ago

A gas of 3.4 moles occupies a volume of 0.046 L at 298 K. What is the pressure in kPa?

Phantasy [73]

Answer : The correct option is, $2.1\times 10^5kPa$

Explanation :

To calculate the pressure of gas we are using ideal gas equation as:

$PV=nRT$

where,

P = pressure of gas = ?

V = volume of gas = 0.046 L

n = number of moles of gas = 3.4

R = gas constant = 8.314 L.kPa/mol.K

T = temperature of gas = 298 K

Now put all the given values in the above formula, we get:

$P\times (0.046L)=(3.4mol)\times (8.314L.kPa/mol.K)\times (298K)$

$P=1.83\times 10^5kPa\approx 2.1\times 10^5kPa$

Therefore, the pressure of gas is, $2.1\times 10^5kPa$

3 0

3 years ago