Heat Capacity
Question 1: What is Heat Capacity?
Answer:
The change in temperature of a substance, when a given quantity of heat is absorbed or rejected by it, is characterized by a quantity called the heat capacity of that substance.
Question 2: What is Specific Heat Capacity?
Answer:
When the same quantity of heat is applied to the same mass of different substances, the resulting temperature changes are not the same. It indicates that each substance has a distinct value for the quantity of heat absorbed or rejected to change the temperature of its unit mass by one unit. This quantity is referred to as the specific heat capacity of the substance.
Question 3: What is Molar Heat Capacity?
Answer:
The amount of heat energy required to raise the temperature of 1 mole of any substance by 1-degree celsius is called Molar Heat Capacity.
Question 4: Which substance has the highest heat capacity?
Answer:
Water has the highest heat capacity among all known substances.
Question 5: Which metal conducts heat the fastest?
Answer:
Among metals, Copper and Aluminium have the highest thermal conductivity, i.e. they conduct heat at the fastest rate.
Question 6: Why is specific heat important?
Answer:
The concept of specific heat is widely used to design thermal equipment. As we know that water has the highest heat capacity so it is widely used as a coolant for various activities.
Heat Capacity
Heat capacity or thermal capacity is an extensive property of matter, that defines its physical property. Heat Capacity is the amount of heat that must be applied to an object in order to cause a unit change in temperature. Heat capacity is measured in Joules per Kelvin (J/K), which is its SI unit. When heat capacity is divided by the mass of the substance, gives the corresponding intensive property called Specific Heat Capacity. Moreover, heat capacity divided by the amount of substance in volumes gives Molar Heat Capacity. Hence, in this article, we’ll understand the important concepts of Heat Capacity like its definition, explanation, formula, unit, specific heat capacity, molar heat capacity