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The efficiency of a Carnot engine depends on: (2022)

Practice Questions

Q1
The efficiency of a Carnot engine depends on: (2022)
  1. The temperature of the hot reservoir only
  2. The temperature of the cold reservoir only
  3. The temperatures of both the hot and cold reservoirs
  4. The type of working substance used

Questions & Step-by-Step Solutions

The efficiency of a Carnot engine depends on: (2022)
  • Step 1: Understand what a Carnot engine is. It is a theoretical engine that operates between two temperature reservoirs.
  • Step 2: Identify the two temperatures involved: T_h (the temperature of the hot reservoir) and T_c (the temperature of the cold reservoir).
  • Step 3: Learn the formula for the efficiency (η) of a Carnot engine: η = 1 - (T_c/T_h).
  • Step 4: Recognize that the efficiency depends on the ratio of the cold reservoir temperature to the hot reservoir temperature.
  • Step 5: Conclude that to increase efficiency, you need a higher T_h and a lower T_c.
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