The weight of a metal block of size 5cm by 4cm by 3cm is 1kg. find the weight of a block of the same metal of size 15cm by 8cm by 3cm.
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Answered by
1
Step-by-step explanation:
Given :
Efficiency of the carnot engine changes from 1/6 to 1/3 when source temperature is raised by 100K.
To Find :
Temperature of sink.
Solution :
❒ Efficiency of carnot's engine (an ideal heat engine), is given by
η = 1 - T'/T
where,
T' denotes temp. of the sink
T denotes temp. of the source
Case - I :
➛ 1/6 = 1 - T'/T
➛ T'/T = 1 - 1/6
➛ T'/T = 5/6
➛ T = 6T'/5 .......... (I)
Case - II :
In this case temperature of the sink is raised by 100K..
➛ 1/3 = 1 - T'/(T + 100)
➛ T'/(T + 100) = 2/3
➛ 3T' = 2T + 200
From the equation (I),
➛ 3T' = 12T'/5 + 200
➛ 15T' - 12T' = 1000
➛ T' = 1000/3
➛ T' = 333.33k
Answered by
2
Answer:
6 kg........
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