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# System prepended metadata

title: 'MEL302 : Heat Transfer - Lec 03'
tags: [Mechanical Engineering, Heat Transfer]

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# MEL302 : Heat Transfer - Lec 03

###### tags: 'MEL302' `Heat Transfer` `Mechanical Engineering`

[TOC]

# Notes

## Specific Heats of Gases, Liquids, and Solids

![](https://i.imgur.com/gxXm9qY.png)
![](https://i.imgur.com/fUx0DzG.png)
![](https://i.imgur.com/7Rs8ao2.png)


## Energy Transfer

![](https://i.imgur.com/CuxXOqO.png)
![](https://i.imgur.com/dNWYVE1.png)
![](https://i.imgur.com/Gr8ALjB.png)

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Q. Problem 
![](https://i.imgur.com/p3J7nvG.png)
Ans. surface area is wrong here
- Given : ![](https://i.imgur.com/aMCSqph.png)
- Solution : ![](https://i.imgur.com/gx5e5dL.png) ![](https://i.imgur.com/y432ROW.png) ![](https://i.imgur.com/nS75PTl.png)

## First Law of Thermodynamics

![](https://i.imgur.com/VXBTS4S.png)
![](https://i.imgur.com/rmzw8Rr.png)
![](https://i.imgur.com/uFUFyWg.png)






