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Phoenix [80]
3 years ago
13

Two kg of N2 at 450 K, 7 bar is contained in a rigid tank connected by a valve to another rigid tank holding 1 kg of O2 at 300 K

, 3 bar. The valve is opened and gases are allowed to mix, achieving an equilibrium state at 370 K.
Determine
(a) the volume of each tank, in m3.
(b) the final pressure, in bar.
(c) the heat transfer to or from the gases during the process, in kJ.
(d) the entropy change of each gas, in kJ/K.
Engineering
1 answer:
11111nata11111 [884]3 years ago
7 0

Answer:WHo knows.Explanation:

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A number 12 copper wire has a diameter of 2.053 mm. Calculate the resistance of a 37.0 m long piece of such wire.
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Answer:

R=1923Ω

Explanation:

Resistivity(R) of copper wire at 20 degrees Celsius is 1.72x10^-8Ωm.

Coil length(L) of the wire=37.0m

Cross-sectional area of the conductor or wire (A) = πr^2

A= π * (2.053/1000)/2=3.31*10^-6

To calculate for the resistance (R):

R=ρ*L/A

R=(1.72*10^8)*(37.0)/(3.31*10^-6)

R=1922.65Ω

Approximately, R=1923Ω

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Answer:

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Answer:

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// Comments are used for explanatory purpose

import java.util.*;

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{

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7 0
3 years ago
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