AP EAMCET · PHYSICS · Thermodynamics
A car engine has a power of . The car makes a roundtrip of 1 hour. If the thermal efficiency of the engine is and the ambient temperature is . The energy generated by fuel combustion is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Energy produced by car engine in 1 hour =20×1000×3600⇒7.2×107 J Considering efficiency of 40%, Q=Eη=7.2×1070.4=180000 kJ
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