Topic: Energy lost by adding nitrogen to water (Read 4809 times)

bonz061583 · « **on:** May 22, 2005, 06:43:34 PM »

This is the problem, What amount of energy, in Joules, is lost by 128.0 grams of water at 67.5 when liquid nitrogen is added to the water cooling it to 24.0? Enter your answer in scientific notation without units. The specific heat of water is 4.184 J/Kg.

Now if i'm not mistaken the correct answer is in the form of

(.128)*(4.184)*(24-67.5)

which gives 23.297, for some reason my answer is wrong

Borek · « **Reply #1 on:** May 22, 2005, 06:58:20 PM »

Are you sure specific heat of water is 4.198 J/kg?

bonz061583 · « **Reply #2 on:** May 22, 2005, 09:09:58 PM »

oops, good point

Donaldson Tan · « **Reply #3 on:** May 23, 2005, 10:14:00 PM »

Quote from: Borek on May 22, 2005, 06:58:20 PM

Are you sure specific heat of water is 4.198 J/kg?

heat capacity of water is 4.198 J/g

Topic: Energy lost by adding nitrogen to water (Read 4809 times)

bonz061583

Energy lost by adding nitrogen to water

Borek

Re:Energy lost by adding nitrogen to water

bonz061583

Re:Energy lost by adding nitrogen to water

Donaldson Tan

Re:Energy lost by adding nitrogen to water

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