chemistry

Calculate how many joules of (total) heat energy are needed to convert the ice at -25.0 *C to steam at 100.0 *C?

  1. 👍
  2. 👎
  3. 👁
  1. How much mass of ice is there?
    You need the specific heats of ice and of water; the heat of vaporization, and the heat of fusion to answer this question.
    C,ice = 0.5 Cal/g C
    C,water = 1.0 Cal/g C
    H,fusion = 80 Cal/g
    H,vaporization = 540 Cal/g

    For Joules, multiply each by 4.184 J/Cal

    Total heat energy required =
    M*[C,ice*25C + H,fusion, + C,water * 100C + H.vaporization)

    1. 👍
    2. 👎
  2. the heat required to convert 2 kg ice of -5

    OC to 100 OC water.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. 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 =

  2. Physics

    How much heat is added to a 10.0 g of ice at -20.0 degrees Celsius to convert it to steam at 120.0 degrees Celsius? compute and add the following heats: heat to heat ice from -20C to 0C heat to melt ice at 0C Heat to heat water

  3. Chemistry

    How do I calculate the amount of heat needed to convert 96g of ice at -24 degrees celciua to water at 28 degrees celciua?

  4. Chemistry

    How much heat energy, in kilojoules, is required to convert 63.0g of ice at −18.0 ∘C to water at 25.0 ∘C ?

  1. Chemistry

    Suppose that 100.0 g of ice a 0 degreesC are added to 300.0 g of water at 25.0 degrees . Is this sufficient ice to lower the temperature of water to 5.00 degrees C and still have ice remaining? Calculate the energy (heat) which

  2. chem

    The heat of combustion of bituminous coal is 2.50 × 104 J/g. What quantity of the coal is required to produce the energy to convert 137.7 pounds of ice at 0.00°C to steam at 100.°C? specific heat (ice) = 2.10 J/g°C specific

  3. Chemistry Help!

    calculate the specific heat of a metallic element if 314 joules of energy are needed to raise the teperature of a 50.0g sample from 25C to 50C. i'm not sure if you use the Q=(s)(m)(delta t) equation or not since it asks for the

  4. CHEMISTRY

    How much heat is needed to melt 150g of ice? and How much heat is needed to change 150g of ice into steam at 110 degrees? My heat of fusion is 361 and my percent error is 8 if you need that. Answers quickly please :(

  1. Chemistry

    Calculate the total heat energy needed to convert 110g of ice at -10°C to steam at 110°C..?

  2. Chemistry

    How many joules of heat are needed to heat 25.0 g of ice at -5.0 degrees celcius to a final temperature of 40.0 degrees celcius? The specific heat of ice is 2.1 j. Our teacher mention to consider the state of water present at 40.0

  3. general chemistry

    Calculate the amount of heat (joules) required to convert 200 g of ice cubes (00 C) to gas at 100 0 (10 pts)

  4. Chemistry

    How much heat energy, in kilojoules, is required to convert 53.0 g of ice at -18.C to water at 25.0 C ?

You can view more similar questions or ask a new question.