How much energy is required to change a 55-g ice cube from ice at −20°C to steam at 115°C? MJ
Heat required to raise the temperature from -20oC to 115oC is
Q=mcice(0-(-20)) +mLf +mcw(100-0) +mLv+mcs(115-100)
Q=0.055*2090*20 +0.055*(3.33*105)+0.055*4186*100 +0.055*(2.26*106)+0.055*2010*15
Q=0.1696 MJ
How much energy is required to change a 55-g ice cube from ice at −20°C to...
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How much energy is required to change a 25-g ice cube from ice at −35°C to steam at 115°C?
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How much energy is required to change a 25-g ice cube from ice at -25 degrees Celsius to steam at 120 celsius
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