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  • What is the shape of a Temp. vs Time graph of a hot body cooling under normal temperature?Option: 1 The graph is a staright line<div cl

What is the shape of a Temp. vs Time graph of a hot body cooling under normal temperature?

Option: 1

The graph is a staright line


Option: 2

The shape depends upon the material of the body under cooling


Option: 3

The graph is exponential


Option: 4

None of these


Answers (1)

best_answer

 

 

 

 

As we learn

To study the relationship between the temperature of hot body and time by plotting a cooling curve -

 

\frac{dQ}{dt} \alpha \left ( \theta-\theta _{o} \right )

\frac{dQ}{dt} = ms \frac{d\theta }{dt}

 

- wherein

 

m= mass of body

s= specific heat

\frac{d\theta }{dt}= Change of temperature with time

 \frac{dQ}{dt} =Change of heat with time

 \Theta =\Theta _{0}+(\Theta _{1}-\Theta _{2})e^{-kt}

 

Posted by

Shailly goel

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