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In a cyclic process, a gas performs 123 J of work on its surroundings per cycle. What amount of heat, if any, transfers into or out of the gas per cycle?

123 J transfers out of the gas

123 J transfers into the gas

246 J transfers into the gas

0 J (no heat transfers)

Respuesta :

Answer:

123 J transfer into the gas

Explanation:

Here we know that 123 J work is done by the gas on its surrounding

So here gas is doing work against external forces

Now for cyclic process we know that

[tex]\Delta U = 0[/tex]

so from 1st law of thermodynamics we have

[tex]dQ = W + \Delta U[/tex]

[tex]dQ = W[/tex]

so work done is same as the heat supplied to the system

So correct answer is

123 J transfer into the gas

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