Which formula can be used to solve problems related to the first law of thermodynamics?
o q=aw+u
o q=u-aw
o q=au+w
o q=au-w

"Q = ΔU + W" is the equation is used to solve the questions related to "First law of thermodynamics".

Option: C

Explanation:

"First law of thermodynamics" states that "energy" neither created nor destroyed, but it can transfer from "one form of energy" to "another form of energy". This "First law of thermodynamics" is also called as "law of conversation of energy". The formula for "First law of thermodynamics" of a system is that "change in internal energy of a system" is same as the difference of "heat energy" flows across the " boundaries of a system" and the "work done" on the system.

ΔU = Q - W

Q = ΔU + W

Where, "ΔU" is "change in internal energy", "Q" is "heat transferred and "W" is "work done.

C) Q=deltaU+W

Explanation:

Edge

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no. dot product   =0 when vecs at right angles