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murzikaleks [220]
4 years ago
10

Estas vivo solo si te podes mover? Pregunta de cs naturales

Chemistry
1 answer:
arlik [135]4 years ago
5 0
No porque plantas estan vivas pero no se mueven solo.
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Microscopic shells that are buried under the seabed are converted to organic sedimentary rocks. during this process, which prope
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4 years ago
Which requires more heat to warm from 22 c to 85 c, 50.0 g of water mor 200. g of aluminum metal?
Yuki888 [10]
Q=mc(change in temp)
Q is amount of heat, m is mass, c is specific heat

Water:
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4 years ago
the compressor exerts a pressure of 400 Pa to compress nitrogen gas from 3 L to 1 L. If no heat transfer occurs, how much will t
Triss [41]

Answer:

0.79014 J

Explanation:

According to the first law of thermodynamics:-

\Delta U = q + w

Where,  

U is the internal energy

q is the heat

w is the work done

From the question,

q = 0 J

The expression for the calculation of work done is shown below as:

w=P\times \Delta V

Where, P is the pressure

\Delta V is the change in volume

From the question,  

\Delta V = 3 - 1 L = 2 L

P = 400 Pa

The expression for the conversion of pressure in Pascal to pressure in atm is shown below:

P (Pa) = \frac {1}{101325} P (atm)

Given the value of pressure = 43,836 Pa

So,  

400 Pa = \frac {400}{101325} atm

Pressure = 0.0039 atm

w=0.0039\times 2\ atmL

Also, 1 atmL = 101.3 J

So,  

w=0.0039\times 2\times 101.3\ J=0.79014\ J (work is done by the system)

So,

\Delta U = 0\ J+0.79014\ J =0.79014\ J

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4 years ago
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