Yes; gases expand uniformly; thus, 491 cubic inches of any gas, if heated one degree, will become 492 cubic inches.
If one cup be filled with lead, and another cup of the same size with water, which will weigh the more, the lead or the water?
The lead will weigh more than the water.
Which is the heavier substance, lead or water?
Lead is heavier than water.
Why do we say lead is heavier than water?
Because a cup full of lead will weigh more than the same cup fall of water, or any bulk of lead will weigh more than an equal bulk of water.
Why is cork lighter than water?
Because any bulk of cork is lighter than an equal bulk of water; a cup filled with cork will weigh less than when it is filled with water.
When lead is put in water, why does it sink to the bottom?