Идеальный газ в сосуде при p=const нагревается от t1=27c до t2=227c. чему равно отношение объёмов идеального газа?

дано:

t1=27 (следовательно t1=300 k)

t2=227 (след t2=500 k)

p=const

найти

v1/v2

решение

v1/v2=t1/t1=300/500=3/5=0.6

Дано:                                       решение p=6  квт=6000  вт                 кпд=аполезное/азатраченное *100% m=6 т=6000 кг                     ап=mgh h=8 м                                   аз=pt t=1 мин 38 с= 98 с               кпд=6000*10*8/6000*98*100=82%                кпд-?                                   ответ: 82%

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