• Tiresia@slrpnk.netEnglish
    182·
    3 days ago

    Calories aren’t metric. 1 calorie is 4.184 Joules.

    Also, a calorie is only 0.99857% of the energy needed to raise a gram of water (without gas dissolved in it) from freezing to boiling at 101325 Pascal of gas pressure, not 1% as the OOP states. 101325 Pascal perhaps being better known by the non-metric unit “1 atmosphere”.

    • Swedneck@discuss.tchncs.deEnglish
      12·
      3 days ago

      if you’re going to nitpick then make sure you’re not technically incorrect.
      You’re talking about the SI system, which is a metric system but not the metric system.

      Quoth wikipedia (yes wikipedia isn’t a source, but i’m not the one who started nitpicking so i don’t have to be nitpick proof :^)
      “… metric system refers to ones that standardise a set of base units and a nomenclature describing relatively large and small quantities using decimal-based multiplicative unit prefixes (such as kilo and milli). The International System of Units (SI) is a good example, and there are other widely accepted systems (less popular than SI) mainly used in specific fields, such as the Gaussian units for electromagnetism.”

    • Eheran@lemmy.worldEnglish
      1·
      3 days ago

      How did you calculate the required energy from freezing to boiling? Specifically which boiling point and what heat capacity function did you integrate?