Question

17. How much heat is required to change the temperature of 50 g
of ice cube initially at - 30 ^{0}C to steam at 160
^{0}C? (Express your answer in J){ specific heat of ice is
2090 J/kg ^{0}C, that of water is 4186 J/kg ^{0}C,
that of steam is 2010 J/kg ^{0}C; Lf = 3.33 X 10 J/kg, Lv =
2.26 X 10 J/kg.}

Answer #1

This phase change process will take place in 5 steps as shown in the figure. First ice will change into water and then water will change into steam. Please note that latent heat of fusion and vaporisation are 3.33*10^5 j/kg and 2.26*10^5 j/kg respectively. Please check for the typing error.

Please find the attached solution, feedback will be appreciated.

How much energy is required to change a 34 g ice cube from ice
at −10◦C to steam at 119◦C? The specific heat of ice is 2090 J/kg ·
◦ C, the specific heat of water is 4186 J/kg · ◦ C, the specific
heat of stream is 2010 J/kg · ◦ C, the heat of fusion is 3.33 × 105
J/kg, and the heat of vaporization is 2.26 × 106 J/kg. Answer in
units of J

How much energy is required to change a 23 g ice cube from ice
at − 12 ◦ C to steam at 101 ◦ C? The specific heat of ice is 2090 J
/ kg · ◦ C and of water 4186 J / kg · ◦ C. The latent heat of
fusion of water is 3 . 33 × 10^5 J / kg, its latent heat of
vaporization is 2 . 26 × 10^6 J / kg, and the...

How much energy is required to change a 40 g ice cube from ice
at -10 oC to steam at 110 oC?
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

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?

You initially have 2.0kg of ice in 3.0kg of water at 0°C. How
much total heat must be added in order to convert 2.0kg of the
entire sample to steam at 100°C? Separately determine the amount of
heat for each stage of this process.
Specific heat capacities (J/kg∙K) Latent heats (J/kg)
c ice = 2090 Lf = 33.5∙10^4
c water = 4186 Lv = 22.6∙10^5
c steam = 2010

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?

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?

Calculate the amount of heat energy required to
change 0.173 kg of ice at a temperature of -35 �C
to steam at a
temperature of 160 �C. (specific heat capacities
of ice, water and steam are 2090, 4180, 2010 J ⁄ kg ⁄
�C
respectively. Latent heat of fusion and vaporization of water
are
3.34e5, 2.26e6 J ⁄ kg respectively.)

How much heat must be removed from 100 g of water at 25.0°C to
change it into ice at -10.0°C? The specific heat of ice is 2090
J/kg · K, and the specific heat of water is 4186 J/kg · K. For
water LF = 334,000 J/kg and LV = 2.256 ×
106 J/kg.

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