Posted by **nikita** on Tuesday, March 1, 2011 at 4:19pm.

tori wants to increase the tempreature of 500 grams of water from 20 degrees celcius to 100 degrees celecius if the specific heat of water is 4.18j/g. degrees celcius how much heat is needed ?

- science -
**DrBob222**, Tuesday, March 1, 2011 at 6:11pm
same song, second verse. And celcius should be celsius.

- science -
**eyra**, Sunday, November 13, 2011 at 9:15am
Q=mxcx(temperature final-temperature initial) , next subtitute values; Q=500gx4.18J/g*Cx(100-20)*C, then cross out g with g and *C with *C . Multiply 500x4.18J ,and subtract 100-20 like this q=500x4.18Jx80=2090x80=167200J . Round to the significant figure will be 167J, that is how much heat is needed. I hope tis can help.

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