# A silver nugget weighing 30 kg was found. What is the specific heat of silver if 294 kJ

September 30, 2021 | education

| **A silver nugget weighing 30 kg was found. What is the specific heat of silver if 294 kJ of energy is released when the nugget is cooled from 80 to 10 ° C?**

The amount of thermal energy released when the silver nugget cools:

Q = C * m * ∆t, where Q is the released amount of energy (Q = 294 kJ = 294 * 10³ J), C is the specific heat capacity of silver (J / (kg * K)), m is the mass of the nugget (m = 30 kg), ∆t – temperature change (∆t = tн – tк, where tн – initial temperature (tн = 80 ºС), tк – final temperature (tк = 10 ºС)).

Specific heat of silver:

С = Q / (m * ∆t) = 294 * 10³ / (30 * (80 – 10)) = 140 J / (kg * K).

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.