How will I do this
Asked by pukai7229
29th October 2018,
9:44 PM
Answered by Expert
Answer:
When A and B are mixed, A gains heat energy and B looses heat energy to reach a common temperature.
Heat Gain by A = Heat Loss by B
CA×4 = CB×3 or CA = (3/4)×CB ............(1)
where CA , CB is specific heat of A and B respectively.
When B and C are mixed, B gains heat energy and C looses heat energy to reach a common temperature.
Heat Gain by B = Heat Loss by C
CB×4 = CC×5 or CC = (4/5)×CB ............(2)
When A and C are mixed, A will gain heat energy and C will loose heat energy to reach a common temperature T
Then we have, CA × ( T - 12) = CC×(28-T) ................(3)
using (1) and (2), we rewrite eqn.(3) and simplify as, (3/4) × ( T - 12) = (4/5)×(28-T) .....................(4)
from (4), we get T = 20.3 ºC
Answered by Expert
30th October 2018,
1:57 AM
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