Question
Using the values for the heat of fusion, specific heat of water, or heat of vaporization, calculate the amount of heat energy in each of the following:
* calories removed to condense 125g of steam at 100 degree C to cool the liquid to 15 degree C
* joules needed to melt a 525-g ice cube at 0 degree C and to war the liquid to 15 degree C
*Kilocalories removed to condense 85 g of steam at 100 degree C, cool the liquid to 0 degree C, and freeze it at 0 degree C
* calories removed to condense 125g of steam at 100 degree C to cool the liquid to 15 degree C
* joules needed to melt a 525-g ice cube at 0 degree C and to war the liquid to 15 degree C
*Kilocalories removed to condense 85 g of steam at 100 degree C, cool the liquid to 0 degree C, and freeze it at 0 degree C
Answers
First one.
q1 = heat removed to condense 125 g steam at 100 C to water at 100 C.
q1 = mass steam x heat vaporization.
q2 = heat removed to cool liquid water at 100 C to 15 C.
q2 = mass water x specific heat water x (Tfinal-Tinitial).
qtotal = q1 + q2
q1 = heat removed to condense 125 g steam at 100 C to water at 100 C.
q1 = mass steam x heat vaporization.
q2 = heat removed to cool liquid water at 100 C to 15 C.
q2 = mass water x specific heat water x (Tfinal-Tinitial).
qtotal = q1 + q2
300
500kl
Related Questions
using the values for heat of fusion, specific heat of water, or heat of vaporization, calculate the...
Find the heat necessary to change 2.5kg of water (ice) at -2 degrees C to steam at 105 degrees C.
s...
how much heat is required to completely vapporize 2.3 grams of ice starting at -50 degrees Celsius?...
What quantity of heat is necessary to convert 50.0 g of ice at 0.0 C into steam 100,0 C? The heat of...