Water is at 355 K, at normal pressure. What is this in degrees celsius, and is the water a solid, a…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
- Water is at , at normal pressure. What is this in degrees celsius, and is the water a solid, a liquid or a gas?
- What would its state be at ?
Need a reminder? The key ideaShow
and . A step of is the same size as a step of . A substance is a solid below its melting point, a liquid between its melting and boiling points, and a gas above its boiling point.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) . This is between and , so the water is a liquid.
Step 2. (b) . This is above , so at normal pressure it is steam, a gas.
Answer: (a) , a liquid. (b) , a gas.
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