Chemistry

posted by .

Calculate the heat released when 64.5g of steam at 119 C is converted to water at 36 C. Assume the specific heat is 4.184 J/g*C for water, the specific heat of steam is 1.99J/g*C, and the heat of vaporization is 40.79 kJ/mol for water.

  • Chemistry -

    q1 = heat removed to lower T from 119 degrees C vapor to 100 degrees C vapor.
    q1 = mass steam x specific heat steam x (Tfinal-Tinitial).

    q2 = heat removed to condense steam at 100 C to liquid water at 100 C.
    q2 = mass steam x heat vaporization.

    q3 = heat removed to lower T from 100 C to 36 C.
    q3 = mass water x specific heat water x (Tfinal-Tinitial).

    Total Q = q1 + q2 + q3.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    How much energy (heat) is required to convert 248 g of water from 0oC to 154oC?
  2. Physics

    Find the heat necessary to change 2.5kg of water (ice) at -2 degrees C to steam at 105 degrees C. specific heat ice= 2060 specific heat water= 4180 specific heat steam= 2020 heat of fusion= 3.34X10^5 heat of vaporization= 2.26X10^6
  3. Chemistry

    Calculate the heat released from 61.5 g of steam at 111 degrees C is converted to water at 39 degrees C. Assume the specific heat of water is 4.184 J/g*C, the specific heat of steam is 1.99 J/g*C and the enthalpy.H.vap= 40.79 KJ/mol …
  4. Chem

    How much energy (heat) is required to convert 248 g of water from 0oC to 154oC?
  5. chemistry

    the heat of fusion water is335 J/g. The heat of evaporization of water is 2.26 kJ/g, the specific heat of ice is 2.05 J/Deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much …
  6. Phase Changes

    The heat of fusion of water is 335 J/g, the heat of vaporization of water is 2.26 kJ/g, the specifc heat of ice is 2.05 J/deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How …
  7. chemistry

    The heat of fusion of water is 335 J/g, the heat of vaporization of water is 2.26 kJ/g, and the specific heat of water is 4.184 J/deg/g. How many grams of ice at 0 ° could be converted to steam at 100 °C by 9,946 Joules of heat?
  8. Chemistry 106 ch 11

    Calculate the heat released when 73.5 g of steam at 122.0 C is converted to water at 39.0C. Assume that the specific heat of water is 4.184 J/g C, the specific heat of steam is 1.99 J/g C, and change in heat vap =40.79 kJ/mol for water.
  9. Physical Science

    A 5.00 kg block of ice at –25 oC is converted to steam at 125 oC. How much energy (in kilojoules) is expended in this process?
  10. chemistry

    1. Given that 50 grams of ice is heated at -20.0 °C to steam at 135.0 °C. i. Show the graph of the changes from ice to steam ii. Calculate the energy needed to change the ice to steam Please use these values: Heat of fusion = 334.16 …

More Similar Questions