SOLUTION: 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.

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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.
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
You need to know how much metal you are heating.
Naturally, you need more heat to heat a kilogram of metal than to heat a gram of metal.
The temperature change, in degrees Celsius, is 250-20=230 .
The temperature change, in Kelvins, is also 230 , because the Celsius scale is the same as the Kelvin scale, just shifted.
To heat m grams of that metal by 230 kelvins,
you would need %22%28+0.40%22J%2F%28g%2AK%29%22%29+%28+m%22%22g+%29%22%28230K%29=0.40%2A230%2AmJ=92mJ.
So, for 10 grams of metal, the heat needed would be 920 Joules.