Answer:
a 10 kg bag of hot water at the same temperature
Explanation:
A 10kg bag of hot water at the same temperature will retain heat much better and keep the tent warmer at night compared to the iron pellet.
- Water has a very large specific heat capacity.
- The specific heat capacity of water allows for it to retain heat better.
- It takes a larger amount of heat to warm water compared to iron which is a better conductor.
- In like manner, it takes more time for water to lose that amount of heat it has gained by the heating process.
- This is why it is a better choice to keep the room warm
