Question

How much heat is required to change a 47.8 *g* ice cube
from ice at -10.4°C to water at 80°C? (if necessary, use
c_{ice}=2090 J/kg°C and c_{steam}= 2010 J/kg°C)

How much heat is required to change a 47.8 *g* ice cube
from ice at -10.4°C to steam at 110°C?

Answer #1

here,

mass of ice , m = 47.8 g = 0.0478 kg

the heat energy required , Q = m * ( Ci * ( 0 - (-10.4)) + Lf + Cw * ( 80 - 0))

Q = 0.0478 * ( 2090 * 10.4 + 334000 + 4186 * 80) J

Q = 3.3 * 10^4 J

------------------------------------------

mass of ice , m = 47.8 g = 0.0478 kg

the heat energy required , Q' = m * ( Ci * ( 0 - (-10.4)) + Lf + Cw * ( 100 - 0) + Lv + Cs * ( 110 - 100))

Q' = 0.0478 * ( 2090 * 10.4 + 334000 + 4186 * 100 + 2256000 + 2010 * 10) J

Q' = 1.46 * 10^5 J

How much heat is required to change a 48.4 g ice cube from ice
at -11.5°C to water at 72°C? (if necessary, use cice=2090 J/kg°C
and csteam= 2010 J/kg°C)
How much heat is required to change a 48.4 g ice cube from ice
at -11.5°C to steam at 116°C?

1. How much heat is required to change a 32.3 g ice
cube from ice at -10.6°C to water at 47°C? (if necessary, use
cice=2090 J/kg°C and csteam= 2010 J/kg°C)
2. How much heat is required to change a 32.3 g ice
cube from ice at -10.6°C to steam at 111°C?

Part A:
How much heat is required to change a 37.9 g ice cube from ice
at -14.1°C to water at 30°C? (if necessary, use cice=2090 J/kg°C
and csteam= 2010 J/kg°C)
Part B:
How much heat is required to change a 37.9 g ice cube from ice
at -14.1°C to steam at 112°C?

A) How much heat is required to change a 44.4 g ice cube from
ice at -13.2 degrees Celsius to water at 80 degrees Celsius? (If
necessary, use c of ice= 2090 J/kg degrees Celsius and c of steam=
2010 J/ kg degrees Celsius) B) How much heat is required to change
a 44.4 g ice cube from ice at -13.2 degrees Celsius to steam at 117
degrees Celsius?

How much energy is required to change a 40 g ice cube from ice
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cwater=4186 J kg-1 oC-1
cice=2090 J kg-1 oC-1
cvapor=2010 J kg-1 oC-1
Lf=3.3x105 J kg-1
Lv=2.26x106 J kg-1

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fusion of water is 3 . 33 × 10^5 J / kg, its latent heat of
vaporization is 2 . 26 × 10^6 J / kg, and the...

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heat of stream is 2010 J/kg · ◦ C, the heat of fusion is 3.33 × 105
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