There are 1000 grams in a kg.
To convert g to kg, dovide by 1000.
3.5/1000= 0.0035 kg
Final answer: D
The average surface temperature of Uranus (nearly being the coldest planet in the solar system) is -224<span>°C</span>
I don't think that "Maxwell's demon" is possible to happen. Take for example a boiling water poured in a glass and cold water poured in the same glass. They each have different temperatures but when they are put together in the same container, the boiling water releases its energy and absorbs some coldness of the cold water and vice versa. In the end, the water temperature will be the average temperature of both types of water. Boiling water and cold water in the same container can never keep their original temperature. It just is not possible. Even if there is a glass partition to separate these waters, heat and coldness will still be transferred between the two through the glass partition.