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

Explanation

This physics concept involves analyzing the given values and applying relevant formulas. Work through the problem step by step using known equations and constants.

Identify what quantity needs to be found and which formula connects the given information to the answer. Substitute the values carefully, paying attention to units.

Check that your calculated answer matches one of the options provided. Understanding the underlying principle helps verify the solution makes physical sense.