Property talk:P5674

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thermal diffusivity
measures the rate of transfer of heat of a material from the hot side to the cold side

Represents	thermal diffusivity (Q3381809)
Data type	Quantity
Allowed units	square millimetre per second (Q26162546) or square metre per second (Q3332099)
Example	nylon (Q177941) → 0.09 square millimetre per second adobe (Q183496) → 0.27 square millimetre per second gold (Q897) → 127 square millimetre per second pyrolytic carbon (Q4363445) → 1,220 square millimetre per second
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P5674 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 9 Main statement 5 55.6% of uses Qualifier 4 44.4% of uses

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Units: “square millimetre per second (Q26162546), square metre per second (Q3332099)”: value unit must be one of listed. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P5674#Units