WikiCards
Play on iPhone nowFree in Safari. Add it to your Home Screen.Play
WikiCards · Card list · Science cards · Hess's law
Uncommon card · Science
Hess's law, an Uncommon card
In physical chemistry and thermodynamics, Hess's law of constant heat summation, also known simply as Hess's law, is a scientific law named after Germain Hess, a Swiss-born Russian chemist and physician who published it in 1840.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 57
- DEF
- 25
- Power
- 82
- Wikipedia reads a year
- 27,000
Power 82 (ATK + DEF): stronger than 25 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- The law states that the total enthalpy change during the complete course of a chemical reaction is independent of the sequence of steps taken.
- Hess's law is now understood as an expression of the fact that the enthalpy of a chemical process is independent of the path taken from the initial to the final state.
- According to the first law of thermodynamics, the enthalpy change in a system due to a reaction at constant pressure is equal to the heat absorbed, which can be determined by calorimetry for many reactions.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Hess's law article was read about 27,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 57 and blocks with 25: each hit it takes is cut by 10 %.
How to get Hess's law
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Hess's law in the power ranking, all domains together.
- Downstate New YorkUncommon · Society · ATK 54 DEF 28
- Duke Charles Louis Frederick of MecklenburgUncommon · History · ATK 53 DEF 29
- GoujianUncommon · History · ATK 55 DEF 27
- Janno LieberUncommon · Society · ATK 51 DEF 31
- Roll cageUncommon · History · ATK 46 DEF 36
- Wolfram von EschenbachUncommon · History · ATK 56 DEF 26
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Hess's law (revision), CC BY-SA 4.0. Photo : Wolfmankurd at English Wikipedia, Public domain, Wikimedia Commons.
