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ANY HELP IS MUCH APPRECIATED, I ALWAYS RATE, THANKS!! . The molar heat capacity

ID: 685257 • Letter: A

Question

ANY HELP IS MUCH APPRECIATED, I ALWAYS RATE, THANKS!! . The molar heat capacity of lead is 26.44 J/Kmol. How muchenergy must be supplied (by heating) to 100 g of lead to increaseits temperature by 10 degrees Celcius? . **This is some simple calculation from general chemistry.. Iam having a brain freeze and I keep getting a very low number. Theanswer is something between 100 J and 200 J. I think am usingAvogadro's number in the wrong place and that is what is messing meup.. ANY HELP IS MUCH APPRECIATED, I ALWAYS RATE, THANKS!! . The molar heat capacity of lead is 26.44 J/Kmol. How muchenergy must be supplied (by heating) to 100 g of lead to increaseits temperature by 10 degrees Celcius? . **This is some simple calculation from general chemistry.. Iam having a brain freeze and I keep getting a very low number. Theanswer is something between 100 J and 200 J. I think am usingAvogadro's number in the wrong place and that is what is messing meup..

Explanation / Answer

We Know that :       According to ThermodynamicRelationship :         Q = m x s xt             = 100 g / 207.2 g / mol x 26.44 J / K -mol x 10 K              = 127.606 J
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