In a heat engine, if the work done is 200 J and the heat absorbed is 500 J, what

₹0.0

Question: In a heat engine, if the work done is 200 J and the heat absorbed is 500 J, what is the efficiency?

Options:

Correct Answer: 50%

Solution:

Efficiency = (Work done / Heat absorbed) * 100 = (200 J / 500 J) * 100 = 40%.

In a heat engine, if the work done is 200 J and the heat absorbed is 500 J, what is the efficiency?

In a heat engine, if the work done is 200 J and the heat absorbed is 500 J, what is the efficiency?

Step 1: Identify the work done by the heat engine, which is given as 200 J.
Step 2: Identify the heat absorbed by the heat engine, which is given as 500 J.
Step 3: Use the efficiency formula: Efficiency = (Work done / Heat absorbed) * 100.
Step 4: Substitute the values into the formula: Efficiency = (200 J / 500 J) * 100.
Step 5: Calculate the fraction: 200 J / 500 J = 0.4.
Step 6: Multiply by 100 to convert to percentage: 0.4 * 100 = 40%.
Step 7: Conclude that the efficiency of the heat engine is 40%.

Efficiency of Heat Engines – Efficiency is calculated as the ratio of work output to heat input, expressed as a percentage.