Asked by Anonymous
how many calories are needed to convert 20.0g of water at 25 Celsius to steam at 100 Celsius?
Answers
Answered by
DrBob222
q1 = heat needed to convert water at 25 to water at 100
q1 = mass x specific heat H2O x (Tfinal-Tinitial)
(Note:) Tf is 100; Ti is 25
q2 = heat needed to convert H2O to steam.
q2 = mass H2O x heat vaporization.
qtotal = q1 + q2
q1 = mass x specific heat H2O x (Tfinal-Tinitial)
(Note:) Tf is 100; Ti is 25
q2 = heat needed to convert H2O to steam.
q2 = mass H2O x heat vaporization.
qtotal = q1 + q2