What is the Mass of 1 Litre of Water at Different Temperatures?
Discover the precise mass of 1 litre of water and its significance at various temperatures.
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The mass of 1 litre of water is precisely 1 kilogram. This applies to pure water at a temperature of 4°C (39.2°F), where water reaches its maximum density. For most practical purposes, you can consider 1 litre of water to weigh 1 kilogram at standard temperature and pressure conditions.
FAQs & Answers
- Why is the mass of 1 litre of water 1 kilogram? 1 litre of water weighs 1 kilogram because it is based on the definition of a litre, which is the volume occupied by 1 kilogram of pure water at 4°C, where water's density is maximized.
- How does temperature affect the mass of water? While the mass of water remains essentially constant at 1 kilogram for 1 litre, its density can change with temperature, affecting the exact weight at different temperatures.
- Is the mass of 1 litre of water the same at all temperatures? The mass of 1 litre of water is always 1 kilogram, but its density varies with temperature, which is important in scientific calculations.
- What is the weight of water in gallons? 1 litre of water is approximately 0.264 gallons, and thus weighs about 2.2 pounds when converted from kilograms.