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Hey! I really need help with this question please :)
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Hey! I really need help with this question please :)

Hey! I really need help with this question please :)-example-1
User Tysean
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1 Answer

2 votes

Answer: B

Step-by-step explanation:

The formula for calculating the efficiency of a heat engine is expressed as

Efficiency = useful work done/Heat energy supplied x 100

From the information given,

Heat energy supplied = 500

useful work done = 50

Efficiency = 50/500 x 100

Efficiency = 10%

User Rlanvin
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