Assertion: gas's temperature | /r/HasProperty | required
Facets:
Source sentences:
text: Many other elements can be fused together, but the larger electrical charge of their nuclei means that much higher temperatures are required.
text: Ammonium salts of carboxylic acids can be dehydrated to amides so long as there are no thermally sensitive groups present: temperatures of 150–200 °C are required.