The new temperature of the aluminium baking sheet is 144.85 °C
Data obtained from the question
- Mass of nitrogen (M) = 225 g
- Heat (Q) = 2.4×10⁴ J
- Initial temperature (T₁) = 25 °C
- Specific heat capacity (C) = 0.89 J/gºC
- Final temperature (T₂) =?
How to determine the new temperature
The new (i.e final) temperature of the aluminium sheet can be obtained as follow:
Q = MC(T₂ – T₁)
2.4×10⁴ = 225 × 0.89 × (T₂ – 25)
2.4×10⁴ = 200.25 × (T₂ – 25)
Divide both side by 200.25
2.4×10⁴ / 200.25 = (T₂ – 25)
119.85 = T₂ – 25
Collect like terms
T₂ = 119.85 + 25
T₂ = 144.85 °C
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