Calculate the change in the enthalpy and the change in entropy when 1 mole of sic is heated from 25 ° c to 1000 °

c. the constant pressure molar heat capacity of sic varies with temperature as

The SiC here is the chemical formula for silicon carbide. At the given temperature, the compound is in solid form. The heat needed to heat up the element from T₁ to T₂ is calculated through the equation,

ΔH = ncp (T₂ - T₁)

where ΔH is enthalpy, n is the number of moles, cp is the specific heat. From reliable source, the specific heat of the silicon carbide is equal to 1.34 J/mol°C.

Substituting the known values to the equation,

ΔH = (1 mole) (1.34 J/mol°C) (1000°C - 25°C)

ΔH = 1306.5 J

Thus, the heat needed is equal to 1306.5 J.