Questions about thermodynamics, please help me
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There are two questions: why Q rises and how to judge Δtm. Because both the numerator and denominator increase as Δt1 increases, why does Δtm increase? Is it because the denominator is ln, so it decreases faster?
Doesn't the same amount of heat in the first sentence mean that Q remains unchanged?
This post was last edited by hcer on 2020-8-14 09:26 This is a pure question, not rigorous at all. There are many situations for the first t2. The q2 flow rate increases. As long as the steam volume is large enough, it is possible for t2 to remain unchanged. Then Q increases； It’s okay if t2 decreases. Then Q can increase, remain unchanged, or decrease.