Limitations of First Law
1 / 10
The First Law cannot determine:
Explanation: The First Law ensures energy conservation but cannot predict the maximum efficiency of a process, which requires the Second Law.
2 / 10
Which law compensates for the First Law’s limitations?
Explanation: The Second Law addresses direction, feasibility, and efficiency, overcoming the First Law’s limitations.
3 / 10
The First Law does NOT limit:
Explanation: The First Law does not address whether a process is reversible or irreversible, which the Second Law governs.
4 / 10
A process obeying the First Law may still be:
Explanation: A process can conserve energy (First Law) but be impossible due to direction or feasibility issues (e.g., unassisted heat flow to hotter body).
5 / 10
The First Law fails to explain:
Explanation: It does not predict whether a process occurs naturally, like water flowing uphill, which violates spontaneity.
6 / 10
Why is the First Law insufficient for engine efficiency?
Explanation: The First Law balances energy but cannot determine the maximum work possible, unlike the Second Law’s efficiency limits.
7 / 10
The First Law does NOT address:
Explanation: The First Law focuses on energy quantity, not quality (e.g., usefulness of heat vs. work), which requires the Second Law.
8 / 10
The First Law allows which impossible process?
Explanation: The First Law permits heat flow from cold to hot (energy conserved), but this is not spontaneous without work, per the Second Law.
9 / 10
A limitation of the First Law is its inability to predict:
Explanation: The First Law does not determine if a process is possible, only that energy is conserved.
10 / 10
The First Law of Thermodynamics does NOT specify:
Explanation: The First Law ensures energy conservation but does not indicate whether a process occurs spontaneously (e.g., heat flow direction).
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