5.27 kJ of heat are required to heat 231 g of gold from 18 °C to 195 °C.
We have 231 g of gold at 18 °C and supply it with heat to increase its temperature to 195 °C. We can calculate the amount of heat required using the following expression.
[tex]Q = c \times m \times \Delta T[/tex]
where,
- c: specific heat capacity of gold (0.129 J/g.°C)
- ΔT: change in the temperature
[tex]Q = \frac{0.129 J}{g.\° C} \times 231 g \times (195 \° C - 18 \° C) = 5.27 \times 10^{3} J = 5.27 kJ[/tex]
5.27 kJ of heat are required to heat 231 g of gold from 18 °C to 195 °C.
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