I don’t believe that “watt hours” are more convenient than joules, especially when they’re not just watt hours but kilowatt hours or megawatt hours. At that point just use megajoules or gigajoules.
I can understand things like eV where the scale is so different that you’d have to constantly use tiny and unusual prefixes. But, for most other things like calories, it’s just tradition rather than a well thought out reason.
I don’t believe that “watt hours” are more convenient than joules
Clearly you’ve never had to do the calculations where these things come up, where hours are a much more common unit of measure for time than seconds, so that multiplying and dividing by time is easier when working with hours.
I don’t believe that “watt hours” are more convenient than joules, especially when they’re not just watt hours but kilowatt hours or megawatt hours. At that point just use megajoules or gigajoules.
I can understand things like eV where the scale is so different that you’d have to constantly use tiny and unusual prefixes. But, for most other things like calories, it’s just tradition rather than a well thought out reason.
Clearly you’ve never had to do the calculations where these things come up, where hours are a much more common unit of measure for time than seconds, so that multiplying and dividing by time is easier when working with hours.