Question
In: Physics
This is for thermodynamics: "The latent heat of vaporization for water at 1 atm and 100...
This is for thermodynamics:
"The latent heat of vaporization for water at 1 atm and 100 degrees C is 2.26x103 kJ/kg. Calculate the latent heat for water at 2 atm and 100 C by combining the heat per kg required to turn liquid water into steam at 1 atm with the heat per kg required to change the pressure of that steam from 1 atm to 2 atm at a temperature of 100 C. Treat the steam as an ideal gas, and take the molar mass of water to be M = 18.015x10-3 kg/mol."
Solutions
genius_generous answered 1 year agoRelated Solutions
Explain specific heat, latent heat of fusion and latent heat of vaporization. Write their mathematical relation...
Explain specific heat, latent heat of fusion and latent heat
of vaporization. Write their mathematical relation and factors upon
which it depends.
(b) 3.5 kg ice is placed at initial temperature of −12°C. How
much heat energy is required to convert this ice completely into
steam
1. The latent heat of vaporization of ethanol is 8.46 x 105 J/kg. How many kg...
1. The latent heat of vaporization of ethanol is 8.46 x 105
J/kg. How many kg of ethanol can be vaporized by 4.52 x 104 J of
heat?
2. 1.82 x 104 J of heat flow into 0.0442 kg of ice at 0C,
causing the ice to melt and then the temperature of the melted ice
to increase. What is the final temperature of the liquid water?
(The specific heat of liquid water is 4186 J/kgC; the latent heat
of...
Using the vlues for the heat of fusion, specific heat of water, and/or heat of vaporization,...
Using the vlues for the heat of fusion, specific heat of water,
and/or heat of vaporization, calculate the amount of heat energy in
each of the following:
A) Kilocalories needed to melt a 525g ice sculpture at 0 degrees
C and to warm the liquid to 15.o degrees C.
B) Kilojoules released when 85.0g of steam condenses at 100
degrees C, cools ad freezes at 0 degrees C.
Please show the formula and how so I can understand. For some...
Using the values for the heat of fusion, specific heat of water, and/or heat of vaporization,...
Using the values for the heat of fusion, specific heat of water,
and/or heat of vaporization, calculate the amount of heat energy in
each of the following:
A. Joules released when 125g of steam at 100 C condenses and cools
to liquid at 15.0 C.
B. Kilocalories needed to melt a 525-g ice sculpture at 0 C and to
warm the liquid to 15.0 C
C. Kilojoules released when 85.0 g of steam condenses at 100 C,
cools, and freezes...
Explain why A) Why the latent heat of vaporization is larger (usually much larger) than the...
Explain why
A) Why the latent heat of vaporization is larger (usually much
larger) than the latent heat of fusion for any process.
B) Heat flows from high to low temperatures.
The vaporization of 1 mole of liquid water (the system) at 100.9°C, 1.00 atm, is endothermic....
The vaporization of 1 mole of liquid water (the system) at
100.9°C, 1.00 atm, is endothermic.
H2O(l)+40.7kJ H2O(g)
Assume at exactly 100.0°C and 1.00 atm total pressure, 1.00 mole
of liquid water and 1.00 mole of water vapor occupy 18.80 mL and
30.62 L, respectively.
A)Calculate the work done on or by the system when 2.45 mol of
liquid H2O vaporizes.
__________J
Calculate the water's change in internal energy.
____________kj
The vaporization of 1 mole of liquid water (the system) at 100.9°C, 1.00 atm, is endothermic....
The vaporization of 1 mole of liquid water (the system) at
100.9°C, 1.00 atm, is endothermic.
Assume at exactly 100.0°C and 1.00 atm total pressure, 1.00 mole
of liquid water and 1.00 mole of water vapor occupy 18.80 mL and
30.62 L, respectively.
H20 (l) +40.7kJ ----> H20 (g)
Please answer both parts of the question:
1. Calculate the work done on or by the system when 3.45 mol of
liquid H2O vaporizes.
2. Calculate the water's change in internal...
Water has an unusually high specific heat, melting point, boiling point, and heat of vaporization as...
Water has an unusually high specific heat, melting point, boiling
point, and heat of vaporization as compared to compounds of similar
molar mass. Explain why.
Please show all work with the correct answer. Thank
you!!!!
Pure liquid water has a heat of vaporization of x kJ/mol. The vapor pressure of water...
Pure liquid water has a heat of vaporization of x kJ/mol. The
vapor pressure of water is 23.756 torr at room temperature (25 °C).
What would the vapor pressure of water be expected to be at 37 °C?
How would the vapor pressure be changed if 1.0 gram of NaCl were
added to a volume of 100 mL of water?
Determine the overall heat transfer coefficient (U) in a heat exchanger that uses steam to heat water to the point of vaporization (in vacuum.)
Determine the overall heat transfer coefficient (U) in a heat exchanger that uses steam to heat water to the point of vaporization (in vacuum.) The system is non-insulated, so the heat lost to the surroundings must be taken into consideration. While I know that the heat Q = mCdT and the heat transfer rate q = UAdT(Log-mean), I am struggling to equate the two due to the heat lost to the surroundings. How do I go about determining the overall...
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