Card 1 of 23
Why is the First Law of Thermodynamics alone insufficient to explain engine operation?
A
It requires an engine to reject 100% of heat to the sink, leaving no energy for work.
B
It does not require an engine to obey conservation of energy, which is physically essential.
C
It forbids an engine from converting any heat into work, which contradicts real engine operation.
D
It does not forbid an engine from converting 100% of heat into work, which is physically impossible.
Card 1 of 23
Second Law and engines (A-level only) Flashcards
23 flashcards on AQA A Level Physics Second Law and engines (A-level only): the key terms, definitions and equations you need to recall for Paper 1, Paper 2 and Paper 3.