document.write( "Question 928062: How much heat is needed to raise the temperature of a metal from 20 degrees celcius to 250 degrees celcius? The Specific heat of metal is 0.40 J/g-K. \n" ); document.write( "

Algebra.Com's Answer #563607 by KMST(5328) $\"\"$ $\"About$

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You need to know how much metal you are heating.
\n" ); document.write( "Naturally, you need more heat to heat a kilogram of metal than to heat a gram of metal.
\n" ); document.write( "The temperature change, in degrees Celsius, is $\"250-20=230\"$ .
\n" ); document.write( "The temperature change, in Kelvins, is also $\"230\"$ , because the Celsius scale is the same as the Kelvin scale, just shifted.
\n" ); document.write( "To heat $\"m\"$ grams of that metal by $\"230\"$ kelvins,
\n" ); document.write( "you would need $\"%22%28+0.40%22\"$ $\"J%2F%28g%2AK%29\"$ $\"%22%29+%28+m%22\"$ $\"%22g+%29%22\"$ $\"%28230K%29=0.40%2A230%2Am\"$ $\"J=92m\"$ $\"J\"$ .
\n" ); document.write( "So, for 10 grams of metal, the heat needed would be 920 Joules. \n" ); document.write( "

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