phy

posted by .

Calculate the change in internal energy of 2kg of water at 90 degree Celsius when it is changed to
3.30m3
of steam at
100oC
. The whole process occurs at atmospheric pressure. The latent heat of vaporization of water is
2.26×106J/kg

  • phy -

    ΔQ=ΔU+W
    ΔU = ΔQ – W =
    =c•m•ΔT + r•m – p•ΔV=
    = c•m•ΔT + r•m – p{V- (m/ρ)} =
    =4190•2•10 +2.26•10⁶•2 – 101325(3.3 – 2/1000) = 4515630 J

  • phy -

    45.72mJ

  • phy -

    Answer is du= mc(teta) + ml - pdv. Solving it gives you 4269830.2J
    Find me @word_geniusoche

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Energy is released when 100kg of steam at 150.0°C and standard pressure changes to water at 60.0°C. Calculate the total energy change. Energy change= heat to cool steam to 100C + heat to change steam to water + heat change for water …
  2. phy

    (Q1)calculate the electric power which must be supplied to the filament of a light bulb operating at 3000k. the total surface area of the filament is 0.000008m2 and iits emissivity is 0.92.(a)20.3w (b)33.8w(c)46.4w(d)56.7w (Q2) calculate …
  3. physics

    A cylinder with a piston contains 0.3 kg of water at 100 degrees C. What is the change in internal energy of the water when it is converted to steam at 100 degrees C at a constant pressure of 1 atm?
  4. physics

    Calculate the change in internal energy of 2kg of water at 90 degree Celsius when it is changed to 3.30m3 of steam at 100oC . The whole process occurs at atmospheric pressure. The latent heat of vaporization of water is 2.26×106J/kg
  5. physics 113

    Calculate the change in internal energy of 2kg of water at 90 degree celcius when it is changed to 3:30m3 of steam at 100oC. The whole process occurs at atmospheric pressure. The latent heat of vaporization of wat
  6. phy

    Calculate the change in internal energy of 2kg of water at 90 degree celcius when it is changed to $3.30m^{3}$ of steam at $100 ^{o}$C. The whole process occurs at atmospheric pressure. The latent heat of vaporization of water is $2.26\times10^{6}$ …
  7. physics

    1 The principle of conservation of heat energy states that that when an object is at constant temperature or is in thermal equilibrium, it is losing and gaining heat at equal rates. the heat lost by a hot body is equal to the heat …
  8. PHY 113

    1 The principle of conservation of heat energy states that that when an object is at constant temperature or is in thermal equilibrium, it is losing and gaining heat at equal rates. the heat lost by a hot body is equal to the heat …
  9. Physics

    In a container of negligible mass, 0.100 kg of steam at 110°C and atmospheric pressure is added to 1.00 kg of water at 20.0°C. (a) If no heat is lost to the surroundings, what is the final temperature of the system?
  10. chemistry

    Calculate the energy (in kJ) required to heat 25 g of liquid water from 25oC to 100.oC and change it to steam at 100oC. The specific heat capacity of liquid water is 4.18 J/goC, and the molar heat of vaporization of water is 40.6 kJ/mol.

More Similar Questions