# Science

How many calories of heat are necessary to raise the temperature of 200g of ice at -30 degrees celsius to steam at 130 degrees? Show graph and work.

1. 👍 0
2. 👎 0
3. 👁 106
asked by Bob
1. Divide this up into heat regions:
heating the ice from -30 to 0
melting the ice at 0
heating the water from 0 to 100
vaporizing the water at 100
heating the steam from 100 to 130

Add the heats to get total heat.

Calories? I thought calories went out 50 years ago. Joules is pretty standard unit of heat now.

1. 👍 0
2. 👎 0
2. what do you mean by add all the heats. Like add all the numbers you just gave me or what. I don't get it?

1. 👍 0
2. 👎 0
posted by Bob
3. calculate the heat to accomplish each of the items listed, then add them up.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### chemistry

The specific heat of ice is 0.5 calories/gram. 60 grams of ice will require _____ calories to raise the temperature 1°C. so i just do 0.5/60 ??

asked by Jon on November 17, 2010
2. ### math

Problem The latent heat of fusion (solid become liquid) for ice is 79.8 cal/gram. How much ice can we melt with 1000 calories of heat? Problem Which would require more heat, melting 500 g of 0 C ice or turning 500 g of 100 C water

asked by sherri on October 6, 2008
3. ### Chemistry

Calculate the amount of heat (in calories) required to raise the temperature of 200g of water from 20C to 50C. The specific heat of water is 1.00 cal/g. I have done other spacific heat problems but on this one i don't know how to

asked by Christina on November 10, 2009
4. ### physics

An ice bag containing 0°C ice is much more effective in absorbing heat than one containing the same amount of 0°C water. (a) How much heat in kcal is required to raise the temperature of 0.700 kg of water from 0°C to 27.0°C?

asked by Eric on July 19, 2013
5. ### Physics - Specific heat

#1.) If 500 grams of a metal requires 70 calories of energy to raise its temperature by 10 Kelvin, what is its specific heat? #2.) How much heat is gained or lost when 200 grams of ice melts?

asked by Heath on October 28, 2010
6. ### chemistry

How many calories must be supplied to 59 g of ice at −6 C to melt it and raise the temperature of the water to 61 C? The specific heat of ice is 0.49 kcal/kg · K and of water is 1 kcal/kg · K; the heat of fusion of water is

asked by anonymous on March 1, 2012
7. ### Science

Why does the temperature remain constant around 0 degrees C and 100 degrees C? For what? For water when it is freezing or boiling? Or do you have another question in mind? Sorry, it's for water when it is freezing or boiling.

asked by Katie on January 4, 2007
8. ### Chemistry - Heat of Fusion of Ice

Conclusion question(s) from a lab we did to find the heat of fusion of ice: Does the value obtained for the molar heat of fusion depend on the volume of water used? Does it depend on the mass of ice melted? Does it depend on the

asked by J.M. on October 1, 2006
9. ### science

Finishing his ginger ale, Ramesh stands at the party holding his insulated foam cup that has nothing in it but 0.100kg of ice at 0 degree celsius. How much heat must be gained by the ice in order for all of it to melt? How much

asked by Debra on January 9, 2012
10. ### Physics - calorie

This was my problem: 4.) The specific heat capacity of copper is 0.092 cal/g*oC. Show that the amount of heat needed to raise the temperature of a 10-g piece of copper from 0oC to 100oC is 92 cal. How does this compare with the

asked by Mary on September 20, 2009

More Similar Questions