Question

Two aircraft rivets, one iron and the other copper, are placed in a calorimeter that has an initial temperature of 20.°C. The data for the rivets are as follows:
Iron Copper
___________________________________
Mass (g) 30.0 20.0
Initial T (°C) 0.0 100.0
c (J/g·K) 0.450 0.387
(a) Will heat flow from Fe to Cu or from Cu to Fe?

Answer 1

The heat will flow from Cu to Fe because Cu has higher temperature and has lower peak value .

Given ,

two aircraft rivets , one iron and the other copper , are placed in a calorimeter .

the initial temp of the calorimeter is 20 degC .

mass of iron = 30 g

initial temp of iron = 0 degC

Mass of copper = 20 g

initial temp of copper = 100 degC

Here copper has higher temp ,thus heat flow from Cu to Fe .

What is heat flow ?

Heat flow is the movement of heat from higher temperature to lower temperature .

What is calorimeter ?

It is an object used for measuring the heat flow , heat capacity of a chemical reaction as well as the physical changes .

Learn more about calorimeter here :

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