1. A unconstant volume can is putted in a hot water. by the time, the volume becomes bigger than the initial size. The reason for volume becomes bigger is when the temperature increases, the pressure increases, too.
(PV = nRT → P = nRT / V) And the hot water transfers its energy into the can, and this energy push the volume to become bigger and bigger. Because the hot water is not that hot, the energy transfers is slowly, so the volume changes slowly, too.
Put in few cotton in a unconstant volume can. When the volume is changed very quick, the temperature will be changed very quick, too. By the calculating steps:
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