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3 years ago

Which thermodynamic process takes place at a constant temperature so that the internal energy of a system remains unchanged?

Physics

2 answers:

NeX [460]3 years ago

4 0

Answer:

Iso-thermal process

Explanation:

An isothermal process is a thermodynamic process which takes place at constant temperature.

ΔT = 0

Since, temperature is used to indicate the internal energy of a system, a process at constant temperature also means that the internal energy of the system remains constant during a isothermal process. The system is connected to a heat bath and the process is done at a slow pace so that the system continues to make the temperature adjustments with the external heat reservoir.

egoroff_w [7]3 years ago

3 0

Isothermal process is a change of a system, in which the temperature remains constant: ΔT = 0. So, if the thermodynamic process takes place at a constant temperature so that the internal energy of a system remains unchanged than this process is isothermal.
The Joule's second Law states that the internal energy of a fixed amount of an ideal gas depends only on its temperature. So, isothermal processes are of great interest for ideal gasses.

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nikitadnepr [17]

Answer:

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Explanation:

Given that,

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We need to find the magnetic energy stored in the solenoid. The expression for the stored energy is :

$E=\dfrac{1}{2}LI^2$

Where

L is self inductance of the solenoid,

$L=\dfrac{\mu_oN^2A}{l}\\\\L=\dfrac{4\pi \times 10^{-7}\times 2100^2\times 0.001}{0.3}\\\\L=0.0184\ H$

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$E=\dfrac{1}{2}\times 0.0184\times 4^2\\\\E=0.1472\ J$

So, 0.1472 J of energy is stored in the solenoid.

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