# Chemistry

calculate the total amount of heat needed to change 500g of ice at -10*C into 500g of steam at 120*C. do this by calculating the ehat required for each of the following steps and adding to get the total:
step 1. ice (-10C)-> ice (0C)
step 2. ice (0C) -> water (0C)
step 3. water (0C) -> water (100C)
step 4. water (100C) -> steam (100C)
step 5. steam (100C) -> steam (120C)

1. 👍 0
2. 👎 0
3. 👁 153
asked by Lyila
1. 367500 kcal

1. 👍 0
2. 👎 0
2. Find the amount of heat energy needed to convert 150 grams of ice at -15°C to ice at -63°C.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### physics

A physical science student adds 500g of 0 degree C ice to 500g of 80 degree C coffee. What is the final temperature of the drink after thermal equilibrium is reached? How much of the ice was melted by the process? Assume coffee

asked by Heat on July 17, 2011
2. ### chemistry

what is the entropy change that occurs when 500g of water ice melts at 0 degrees celsius and 1 atm. the heat of fusin for water ice under these conditions is 6.01 Kj/mol.

asked by steven on March 10, 2011
3. ### physical chemistry

calculate late the Gibbs free energy, entropy and enthalpy of mixing when 500g of heptane is mixed with 500g oh hexane at 298K.

asked by pholisa on March 30, 2015
4. ### physics

How much heat is necessary to change 500g of ice at-10 celsius to water at 20 celsius?

asked by erica on October 15, 2012
5. ### Chemistry

Record the amount of heat needed to change phases for water-ice to steam using graphical analysis. Is there a one accurate amount of heat needed to change phases, I thought it varied depending the problem... Would the question be

asked by Amy~ on June 10, 2010
6. ### Physics

what will be the final temp of 500g of 21c waterbullets are dropped in? when 500g of 324c lead

asked by Rachelle on April 16, 2014
7. ### Physics

calculate the specific heat capacity of the materials for which the heat supply, mass, and temperature below: (i) 2.52 x 10^4j, 0.3 kg, 20 k (ii) 8 x 10^3j, 500g, from 20'c to 60'c (iii) 9.45 x 10^3j, 150g, from 15'c to 45'c

asked by Johnny on September 28, 2017
8. ### physics

got 22 degrees celsius for the last answer from Damon. Another question is ......How much heat is needed to raise the temperature of a 500g object with specific heat capacity 0.5 cal/g c by 25 degrees?

asked by tony on June 17, 2012
9. ### physics

calculate the specific heat capacity of the materials for which the heat supply, mass, and temperature rises are given below: i)25200J, 0.3Kg ii)8000J, 500g, from 20'C to 60'C iii)9450J, 150g, from 15'C to 45'C

asked by fiyin on January 10, 2017
10. ### Chemistry

how many grams of each species will be present at the end when 0.500g of copper is added to 2.500g of AgNO3? Cu(s) + 2 AgNO3(aq) --> 2 Ag(s) + Cu(NO3)2 (aq)

asked by tc on June 8, 2011

More Similar Questions