Thanks can you check one more
If it takes 105 calories to warm 100g of aluminium from 20oC to 25oC, what is the specific heat of aluminium?
Q = MxdeltaTxC
105cal = 100gx (5oC) x C
C = .21 cal/gCo
we get points off if we do not show our work and just give the answer
5 answers
The number looks good to me. I suggest you write it as 0.21 cal/g*C. It's good practice to place a 0 before the decimal; sometimes people tend to overlook the decimal, especially if their eye sight is failing.
dr bob
does the o go over the g or the C
does the o go over the g or the C
Answered above.
how many joules are absorbed by a pot of water with a mass of 500g in order to raise the temperature from 20°c to 30°c
The specific heat of water is 1.0cal/g celsius, or 4.2 joules/g celsius.
There's 500g of water. 500*1=500
You want to raise the temperature by 10 degrees celsius.
500*10=5000
You need 5000 calories in order to raise the temperature.
There's 500g of water. 500*1=500
You want to raise the temperature by 10 degrees celsius.
500*10=5000
You need 5000 calories in order to raise the temperature.
2 answers