A 6.25 kg block of an unknown substance with a temperature of 104.0°C is placed in a calorimeter con

Question

A 6.25 kg block of an unknown substance with a temperature of 104.0°C is placed in a calorimeter containing 16.3 kg of water at 34.6°C. The system reaches an equilibrium temperature of 37.0°C. What is the specific heat capacity of the unknown substance if the heat capacity of the calorimeter is neglected?

[Specific heat capacity of water, c = 4200 Jkg⁻¹K⁻¹]

Answer 1

A 6.25 kg block of an unknown substance with a temperature of 104.0°C is placed in a calorimeter containing 16.3 kg of water at 34.6°C. The system reaches an equilibrium temperature of 37.0°C. What is the specific heat capacity of the unknown substance if the heat capacity of the calorimeter is neglected?

[Specific heat capacity of water, c = 4200 Jkg⁻¹K⁻¹]

4.2 x 10² Jkg⁻¹K⁻¹
3.9 x 10² Jkg⁻¹K⁻¹ ✓
1.4 x 10² Jkg⁻¹K⁻¹
4.5 x 10² Jkg⁻¹K⁻¹

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