chemistry

What will be the final temperature of the water in an insulated container as the result of passing 5.00 g of steam [H2O(g)] at 100.0°C into 195.0 g of water at 20.0°C? (?H°vap = 40.6 kJ/mol H2O)


The best way to do these problems is to make the heat gained + heat lost = 0.
q1 = heat gained by water = mcdeltaT
massH2O x specific heat water x (Tf-Ti). Tf is the final T and Ti is the initial T.
q1 = 195.0 g x 4.184 J/g*C x (Tf - 20.0)
q2 = heat lost by steam in converting steam (g) @ 100.0 C to liquid @ 100.0 C = mass x delta H.
q2 = 5.00g x 40,600 Joules = ??
q3 = heat lost with 5.00 g (from the steam conversion)water moving from 100.0 C to final T.
q3 = 5.00g x 4.184 J/g*C x (Tf - Ti).
Ti is 100.0.
q1 + q2 + q3 = 0.
Plug in for q1, q2, and q3 and solve for Tf.

  1. 👍 1
  2. 👎 1
  3. 👁 1,039
  1. -524

    1. 👍 0
    2. 👎 1

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    A 110.-g sample of copper (specific heat capacity = 0.20 J/°C · g) is heated to 82.4°C and then placed in a container of water at 22.3°C. The final temperature of the water and copper is 23.5°C. What is the mass of the water

    asked by Brittney on July 11, 2011
  2. Physics

    a): Two 50 g ice cubes are dropped into 200 g of water in a thermally insulated container. If the water is initially at 25 degree Celsius, and the ice comes directly from a freezer at -15 degree Celsius, what is the final

    asked by bano on December 10, 2013
  3. chemistry

    A 32.2 g iron rod, initially at 22.3 C, is submerged into an unknown mass of water at 63.9 C, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 58.6 C. What is the mass of the

    asked by HELP on March 19, 2012
  4. Physics

    A 50 g sample of an unknown metal is heated to 90.0C. It is placed in a perfectly insulated container along with 100 g of water at an initial temperature of 20C. After a short time, the temperature of both the metal and water

    asked by Anonymous on February 14, 2016
  5. Physics

    An ice cube having a mass of 50 g and an initial temperature of -20⁰C is place in 400 g of water 30⁰C water. What is the final temperature of the mixture if the effects of the container can be neglected?

    asked by Nina on April 19, 2010
  1. chemistry

    A sample of steam with a mass of 0.524g and at a temperature of 100 ∘C condenses into an insulated container holding 4.20g of water at 6.0∘C.( ΔH∘vap=40.7 kJ/mol, Cwater=4.18 J/g⋅∘C) Assuming that no heat is lost to the

    asked by Anonymous on December 3, 2014
  2. chemistry

    If 150.0 g of Zinc at 100.0 C and 250.0g of liquid water at 10.0 C are mixed in an insulated container, what is the final temperature of the mixture? Czn= .39J/g C Cwater= 4.184J/g C Are we looking for the delta T? If we are, how

    asked by miyabi on November 30, 2015
  3. Final Temperature

    A sample of steam with a mass of 0.553 g and at a temperature of 100 degrees C condenses into an insulated container holding 4.25 g of water at 4.0 degrees C. Assuming that no heat is lost to the surroundings, what will be the

    asked by Amy on January 15, 2013
  4. Physics

    A 0.0475 kg ice cube at −30.0°C is placed in 0.577 kg of 35.0°C water in a very well insulated container. The latent heat of fusion of water is 334 kJ/kg, the specific heat of ice is 2092 J/(kg · K), and the specific heat of

    asked by Art on January 25, 2016
  5. Physics

    Suppose a block of mass of lead of mass 0.4kg at temperature 95°C is dropped in 2kg of water originally at 20°C in a container.calculate the final temperature if no heat is lost to the container and environment;

    asked by Timothy on March 22, 2018

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