Which of the following is the symbolic form of the first law of the thermodynamics?
(A) ΔU = q - W
(B) W = ΔU - q
(C) ΔU = q + PV
(D) Δq + W = ΔU
Answers
Answered by
0
Answer:
option (b)
Explanation:
because 1st law of thermodynamics states that
ΔU=q+w
it can be written as,
w=ΔU-q
Answered by
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ΔU = q - W
Explanation:
As per the first law of thermodynamics, the change in internal energy of a system is equal to the heat added to the system minus the work done by the system.
In other words, the internal energy E of a system tends to increase if energy is added as heat Q, and tends to decrease if energy is lost as work W done by the system.
It is represented by the equation ΔU = q - W
where ΔU is the change in internal energy
q is the heat added to the system
W is the work done by the system
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