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How many kilojoules are released when 75.0g of steam at 100 degrees C condenses cools to 0 degrees C and freezes at 0 degrees C?
You need 3 calculations.
1 - Heat removed to change a gas to liquid
2 - Heat removed to cool H2O from 100C to 0C
3 - Heat needed to change a liquid to a solid
1 - Heat of vaporization (or condensation) for water = 2260J/1g H2O
75.0g H2O x 2260J/1g H2O = 169,500J
2 - Change in temp = 100C
75.0g H2O x 100C x 4.184J/gC = 31,380J
3 - Heat of fusion for water = 334J/1g ice
75.0g H2O x 334J/1g ice = 25,050J
Add Joules together = 225,930J
Convert to kJ = 225,930J x 1kJ/1000J = 225.93kJ
Since 75.0 has 3 sig figs, the answer would be 226kJ
What else can I help you with?
Does butane freeze?
Yes, butane freezes at -138 degC or -216F. It boils (condenses) at -0.5degC or 31F, at normal atmospheric pressure.
Does oxygen turn into liquid at -50 degrees celsius?
No, it does not.
What degrees freezes at Celsius?
Water freezes at zero degrees Celsius under normal atmospheric conditions.
32 d f at which w f?
32 degrees at which water freezes 32 Degrees Fahrenheit at which Water Freezes.
What does 32 d f at which w f mean?
32 degrees Fahrenheit at which water freezes
32 in the T in D F at which W F?
32 is the temperature in degrees Fahrenheit there is also an expanded version of this which reads 32 is the T in D F at which W F 32 is the temperature in degrees Fahrenheit at which water freezes
32 D at which WF?
32 = Degrees at which water freezes 32 = Degrees at which water freezes
What temperature water boils and freezes at in celsius?
Water boils at 100 degrees Celsius and freezes at 0 degrees Celsius.
What is tiny crystals that form when water vapor condenses near the ground and freezes?
Frost is the term used to describe tiny ice crystals that form when water vapor in the air condenses and freezes on surfaces near the ground.
What is the temperature water freezes?
Water freezes at 0 degrees Celsius or 32 degrees Fahrenheit.
What temperature freezes?
It depends on the liquid. Water freezes at 0 degrees C, 32 degrees F, and 273.15 degrees K.
What is the answer to the ditloid DF at which WF?
Degrees Fahrenheit at which Water Freezes (Water freezes at 32 Degrees Fahrenheit)
