To determine the possible temperatures of a substance that has less kinetic energy than substance Z but more kinetic energy than substance X, let's analyze the given temperatures of substances X and Z and the possible choices provided.
### Step-by-step analysis:
1. Understanding the kinetic energy and temperature relationship:
- More kinetic energy typically means higher temperature.
- Less kinetic energy typically means lower temperature.
2. Given temperatures:
- Substance X: 18°C
- Substance Z: 24°C
3. Condition to be satisfied:
- The temperature of our substance must be more than 18°C (temperature of X)
- The temperature of our substance must be less than 24°C (temperature of Z)
4. Possible temperatures provided:
- 15°C
- 18°C
- 20°C
- 25°C
5. Evaluating each possible temperature:
- 15°C: This temperature is less than 18°C. It does not satisfy the condition.
- 18°C: This temperature is equal to 18°C and not greater. It does not satisfy the condition.
- 20°C: This temperature is greater than 18°C and less than 24°C. It satisfies the condition.
- 25°C: This temperature is greater than 24°C. It does not satisfy the condition.
### Conclusion:
After evaluating all the given temperatures, the only temperature that meets the condition (i.e., being more than 18°C and less than 24°C) is 20°C. Therefore, the temperature of the substance that has less kinetic energy than substance Z but more kinetic energy than substance X could be 20 degrees Celsius.
