ana Cooling Curves Coohng Curves hereverte process cooling team uns thkomas wate
ID: 519859 • Letter: A
Question
ana Cooling Curves Coohng Curves hereverte process cooling team uns thkomas water ont2 each case, Mo types of segments on the graphs Hearing curve where ris heatiniaules mismase in grams and AH the eneapy inkues per gram The constants Heo shown here Part A numerically in kilojouks Express your answer Incorrect, Try Again: 4 attempts remaining Part B How would it take for 150 mol of water at 1000 C be converted completely steam if heat were added at an ate of 190J/s? constant Express your answer numerically minutes. Subsi Hints My Answers Give Up Review PartExplanation / Answer
1.
Mass of ice =50 gm .
Total heat to be supplied is sum of heats vide 1,2 and 3and hence heat= 1881+16700+5230 =23811 Joules= 23.811 Kj
2. 1.5 moles of water refer to 1.5*18 gm of water ( molar mass of water =18 and mass = moles* moalr mass )
mass of water= 1.5*18= 27 gm
latent heat of water at 100 deg.c = 2250 j/gm
total heat to be supplied= 2250 j/gm*27 gm = 60750 joules
heat is supplied at 19 j/s.
time required= 60750/19 seconds =3197 seconds
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.