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How much total heat transfer is necessary to lower the temperature of 0.275 kg of steam...

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Physics

How much total heat transfer is necessary to lower thetemperature of 0.275 kg of steam from 145.5 °C to −15.5 °C,including the energy for phase changes?

total heat transfer:

J

How much time is required for each stage of this process,assuming a constant 815.0 W rate of heat exchange? Give the timesin the order that the stages occur.

t1=

t2=

t3=

t4=

t5=

Answer & Explanation Solved by verified expert
4.1 Ratings (691 Votes)
let Q1 is the heat lost during temperature decreases from 145 to 100 C Q2 is the heat lost during phase change from vapour to    See Answer
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