Question

A iron at temperature 80°c is dipped in water inside the calorimeter at temperature 25°c if mass of vlog is 500 g that water 266g what will be final temperature atted by three if the mass of calorimeter is 100g​

Answer 1

Explanation:





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Class 11

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>>A piece of metal weighing 100 g is heate

Question



A piece of metal weighing 100 g is heated to 80o C and dropped into 1 kg of cold water in an insulated container at 15o C. If the final temperature of the water in the container is 15.69o C, the specific heat of the metal in J/go.C is:

A

0.38

B

0.24

C

0.45

D

0.13

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Solution



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Correct option is C)

Heat exchanged is given by,

Q=m×s×(T2−T1) where s= specific heat

So, when heated metal is dropped into the cold water, we can write:

mmetal×smetal×(T2−T1)metal=mwater×swater×(T2−T1)water

0.1×smetal×(80−15.69)=1×4.18×(15.69