Asked by LeAnna
How much heat is needed to cause the following irreversible reaction?
200 g of liquid H2O at 50°C is heated to form 200 g of steam at 120°C
200 g of liquid H2O at 50°C is heated to form 200 g of steam at 120°C
Answers
Answered by
DrBob222
q1 = heat needed to raise T from 50 C to 100 C.
q1 = mass H2O x specific heat liquid H2O x (delta T)-----delta T = Tfinal-Tinitial = 100-50 = 50
q2 = heat needed to vaporize liquid H2O at 100 C to vapor(steam) at 100 C.
q2 = mass H2O x heat vaporization.
q3 = heat needed to heat steam at 100 to steam a 120 C.
q3 = mass steam x specific heat steam x delta T----120-100 = 20
Total q needed = q1 + q2 + q3.
q1 = mass H2O x specific heat liquid H2O x (delta T)-----delta T = Tfinal-Tinitial = 100-50 = 50
q2 = heat needed to vaporize liquid H2O at 100 C to vapor(steam) at 100 C.
q2 = mass H2O x heat vaporization.
q3 = heat needed to heat steam at 100 to steam a 120 C.
q3 = mass steam x specific heat steam x delta T----120-100 = 20
Total q needed = q1 + q2 + q3.
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.