The gold block will have greater rise in temperature or change in temperature after the addition of heat.
Further Explanation:
The blocks of same mass and different material are kept at same temperature. Later the same amount of heat is added to both the blocks due to which the temperature of the blocks changes.
Given:
The mass of the blocks is .
The specific heat of gold is .
The specific heat of iron is .
Concept:
The specific heat of a substance also known as heat capacity per unit mass is the amount of heat required to raise the temperature of a body of mass by an amount of . The specific heat of any object depends upon the change in temperature of the object, mass of the object, the substance with which object is made and the phase of the substance.
The specific heat of a block is:
……. (1)
Here, is the specific heat of block, is the amount of heat added to the block, is the mass of the block and is the change in temperature of the block after heat is added to the block.
Both the blocks, iron and gold block, have same mass and same amount of heat is added to both the blocks.
Therefore, from equation (1) it can be concluded that:
…… (2)
The change in temperature of an object is inversely proportional to the specific heat of the substance from which object is made. The larger the specific heat lesser will be the change in temperature and lesser the specific heat larger will be the change in temperature.
The specific heat of gold is lesser than the specific heat of iron. From equation (2) the change in temperature of gold block is larger because it has smaller specific heat and change in temperature of iron block is small because it has large specific heat.
Thus, the gold block will have greater rise in temperature or change in temperature after the addition of heat.
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Answer Details:
Grade: High School
Subject: Physics
Chapter: Thermodynamics
Keywords:
Specific heat, change in temperature, specific heat of gold, specific heat of iron, heat transfer, rise in temperature of an object, blocks of same mass, greater change in temperature.