A furnace inside temperature of 1920 degrees celcuis has a glass circular viewing of 6cm diameter. If the transmissivity of the glass is 0.7, calculate the heat loss from the glass.
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Step-by-step explanation:
Hydrates are compounds that incorporate water molecules into their fundamental solid structure. In a hydrate (which usually has a specific crystalline form), a defined number of water molecules are associated with each formula unit of the primary material.
Gypsum is a hydrate with two water molecules present for every formula unit of CaSO4. The chemical formula for gypsum is CaSO4 • 2H2O and the chemical name is calcium sulfate dihydrate. Note that the dot in the formula (or multiplication sign) indicates that the waters are there. Other examples of hydrates are: lithium perchlorate trihydrate - LiClO4 • 3H2O; magnesium carbonate pentahydrate - MgCO3 • 5H2O; and copper(II) sulfate pentahydrate - CuSO4• 5 H2O.
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