Asked by Bob
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.
Answers
Answered by
bobpursley
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.
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.
Answered by
Bob
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?
Answered by
bobpursley
calculate the heat to accomplish each of the items listed, then add them up.
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