2.3*10^14 and 5.4*10^-3
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Answer:- Iron block final temperature is 64 degree C and copper block final temperature is 76 degree C.
Solution:- These problems are based on the formula:
where, q is the heat energy, m is mass, is specific heat and
is the change in temperature.
mass of iron is given as 1.1 kg. We need to convert it to grams:
= 1100 g
q is 13 kJ, let's convert it to J:
= 13000 J
of iron is
Let's calculate change in temperature for iron.
Since, = final temperature - initial temperature
26 = final temperature - 38
final temperature = 26 + 38 = 64 degree C
So, The final temperature of iron block would be 64 degree C.
Let's do the same calculations for copper block, it's mass is 890 g and specific heat is .
Now, calculations for final temperature:
= final temperature - initial temperature
38 = final temperature - 38
final temperature = 38 + 38 = 76 degree C
So, the final temperature of copper block is 76 degree C.