Posted by **Connie** on Saturday, September 10, 2011 at 10:36am.

What is the amount of energy of calories to heat 8.5g of water from 15 C to 36 C?

I think you take 8.5g x 21 degree C, but then I am stuck. Thank you

- Chem -
**Jai**, Saturday, September 10, 2011 at 10:50am
amount of energy absorbed or released is given by

Q = mc*(T2 - T1)

where

Q = heat (in Joules)

m = mass (in grams)

c = specific heat capacity (J/g-K)

T = temperature (in Celsius or Kelvin)

*note that Q is (+) if the object absorbed heat, and (-) if it released heat.

for water, c = 4.184 J/g-K (you can find this in books or you can google this)

substituting,

Q = 8.5*4.184*(36-15)

Q = ?

now solve for Q. units in Joules.

hope this helps~ :)

## Answer this Question

## Related Questions

- Chem >Jai - Posted by Connie on Saturday, September 10, 2011 at 10:36am. What...
- College Chemistry - Using the values for the heat of fusion, specific heat of ...
- physics - In lab, Will burns a 0.6 g peanut beneath 48 g of water, which ...
- physics - The specific heat capacity of ice is about 0.5 cal/g degree C A)...
- science grade 5 - how is heat related to temperature? Temperature tells us the ...
- chem - How much heat(energy) in calories will it take to warm 25 g of ice at -10...
- Chemistry - How much energy(in calories)would it take to heat 13g of water 2 ...
- Chem - The specific heat of water is 4.184 J/g degree C, and the specific heat ...
- Physics - My question is two parts How many calories of heat energy would it ...
- PHYSICS - In lab, Will burns a 0.6- peanut beneath 48 of water, which increases ...

More Related Questions