Physics 2014 JAMB Past Questions - Question 22: The quantity of heat needed to raise the temperature of a body by 1K is the body's

Correct Answer

D

Explanation

the quantity of the heat required to raise the temperature of a body by 1k is the heat capacity.The quantity of heat needed to raise the temperature of a body by 1 Kelvin (1 K) is often referred to as the body's specific heat capacity, or simply its "specific heat." Specific heat is a material-specific property that indicates how much heat energy is required to change the temperature of a given mass of the substance by a certain amount. It is typically measured in units of joules per gram per degree Celsius (J/g°C) or joules per kilogram per Kelvin (J/kg·K).

Different substances have different specific heat capacities, and this property plays a crucial role in determining how materials respond to changes in temperature and how they store or release heat energy. Water, for example, has a relatively high specific heat capacity, which is why it can absorb and store a significant amount of heat energy without undergoing large temperature changes, making it important for climate and weather regulation.

The specific heat capacity of a substance is a fundamental concept in thermodynamics and heat transfer, and it is an important parameter in various scientific and engineering applications.