Recent content by nsw

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    Calculating Heat of Vaporization for Solid CO2 in Water

    The temperature change is of the fluid in the beaker which goes from 66 to 29 degrees celsius.
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    Calculating Heat of Vaporization for Solid CO2 in Water

    yes it does talk about temperature change
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    Calculating Helium Balloon Volume for 500 kg Payload

    Oh Yah! Thanks a Bunch!
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    Calculating Helium Balloon Volume for 500 kg Payload

    Where does the 500 come from?
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    Calculating Heat of Vaporization for Solid CO2 in Water

    Q=mass*specific heat*change in temp. But how does this help me?
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    Calculating Helium Balloon Volume for 500 kg Payload

    How do you solve V(1.29)= 500000+V(0.178) and is this really your answer?
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    Calculating Heat of Vaporization for Solid CO2 in Water

    Sorry, but i am still confused about this problem.
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    Calculating Helium Balloon Volume for 500 kg Payload

    How are you supposed to solve this equation with two unknowns?
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    Calculating Heat of Vaporization for Solid CO2 in Water

    heat of vaporization Doesn't it have to do with the Qlost=Qgain
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    Calculating Helium Balloon Volume for 500 kg Payload

    I can't seem to figure this simple helium balloon problem out? I would really appreciate some help? Thanks! Estimate the volume of a helium-filled balloon at STP if it is to lift a payload of 500 kg. The density of air is 1.29 kg/cubic meter and helium has a density of .178 kg/cubic meter...
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    Calculating Heat of Vaporization for Solid CO2 in Water

    Help!---heat Of Vaporization I could really use some help with this please! 125 grams of dry ice (solid CO2)is dropped into a beaker containg 500 grams of 66 degree celsius water. The dry ice converts directly to gas, leaving the solution. When the dry ice is gone, the final temperature of...