Asked by Faisal
A 210 g iron bar is heated and then placed in 100. g of water in an insulated container. The water temperature increases from 21.2 °C to 53.3 °C. What was the initial temperature of the iron bar?
(Specific heats: cFe = 0.449 J/gK; cwater = 4.184 J/gK)
(Specific heats: cFe = 0.449 J/gK; cwater = 4.184 J/gK)
Answers
Answered by
DrBob222
heat lost by Fe + heat gained by H2O = 0
[mass Fe x specific heat Fe x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial) = 0
Substitute and solve for Tinitial for Fe.
[mass Fe x specific heat Fe x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial) = 0
Substitute and solve for Tinitial for Fe.
Answered by
robert
How much energy is required to heat 120.0g of water from 2.0°c to 24.0°c (Cp of H2O=4.184J/g
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.