Go Back   Physics Help Forum > High School and Pre-University Physics Help > Thermodynamics and Fluid Mechanics

Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

Reply
 
LinkBack Thread Tools Display Modes
Old Mar 6th 2010, 08:39 AM   #1
Junior Member
 
Join Date: Mar 2010
Posts: 2
specific heat

The specific heat of a substance varies with temperature according to c = 0.20 + 0.14T + 0.023T2, with T in C and c in cal/gK. Find the energy required to raise the temperature of 2.0 g of this substance from 5.0C to 15.00C.

i would have done the integral of the equation using the values 15 and 5. then i would have used the equation Q=delta T x mass x the value i got from the integral

are these steps correct?
thanks
fibonacci is offline   Reply With Quote
Old Mar 9th 2010, 06:30 AM   #2
Senior Member
 
Join Date: Dec 2008
Location: Udupi, Karnataka, India
Posts: 292
Originally Posted by fibonacci View Post
The specific heat of a substance varies with temperature according to c = 0.20 + 0.14T + 0.023T2, with T in C and c in cal/gK. Find the energy required to raise the temperature of 2.0 g of this substance from 5.0C to 15.00C.

i would have done the integral of the equation using the values 15 and 5. then i would have used the equation Q=delta T x mass x the value i got from the integral

are these steps correct?
thanks
Q = m*intg(c*ΔT) = m*Intg[0.20 + 0.14T + 0.023T2]*dT.
Now find the integration between the limits 5 degrees to 15 degrees.
sa-ri-ga-ma is offline   Reply With Quote
Reply

  Physics Help Forum > High School and Pre-University Physics Help > Thermodynamics and Fluid Mechanics

Tags
heat, specific



Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
Specific latent heat and heat capacity Punch Thermodynamics and Fluid Mechanics 0 Apr 23rd 2010 06:51 PM
Specific heat / heat capacity help!! joannahector1225 Thermodynamics and Fluid Mechanics 0 Mar 6th 2010 06:48 PM
Specific Heat Help CherryLemonade Thermodynamics and Fluid Mechanics 1 Feb 13th 2010 12:53 AM
Specific Heat of Metals SaraE Thermodynamics and Fluid Mechanics 1 Jul 1st 2009 03:27 AM
specific heat chocolatelover Thermodynamics and Fluid Mechanics 3 Dec 2nd 2008 01:12 PM


Facebook Twitter Google+ RSS Feed