GK
PHYSICS
Question
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Direct proportionality


Direct square proportionality


Inverse proportionality


Inverse square proportionality

Detailed explanation1: Heat Transfer and Temperature Change In the SI system, the specific heat is numerically equal to the amount of heat necessary to change the temperature of 1.00 1.00 kg of mass by 1.00 ° C 1.00 ° C . The SI unit for specific heat is J/ ( kg × K ) J/ ( kg × K ) or J/ ( kg × °C ) J/ ( kg × °C ) .
Detailed explanation2: Reason: Specific heat of a substance is directly proportional to change of heat and inversely proportional to change in temperature.
Detailed explanation3: Thermal energy is directly proportional to the change in temperature of the object. Heat is the form of thermal energy. The hotter the substance, the more will be its thermal energy. The rise of thermal energy by increasing the temperature is due to the faster movements of atom and molecules of the substance.
Detailed explanation4: The overall heat transfer is dependent on the geometry of the system and the different thermal resistance. The overall heat transfer coefficient’s notation is Ufactor. The heat transfer rate Q is proportional to the overall heat transfer coefficient in direct relation.