Yes. The relevant experiment would be a study of how gases expand when heated, leading to the ideal gas law, which has a special case at absolute 0.
The special case distinguishes between cold being a real entity (and heat being neg-cold) and heat being a real entity (and cold being neg-heat); because it proves that heat has a minimum, and cold a maximum, rather than the other way around.
Yes. The relevant experiment would be a study of how gases expand when heated, leading to the ideal gas law, which has a special case at absolute 0.
The special case distinguishes between cold being a real entity (and heat being neg-cold) and heat being a real entity (and cold being neg-heat); because it proves that heat has a minimum, and cold a maximum, rather than the other way around.