Question: Urgent!!! Solve part B t o G . t = 9 mins Ambient Temperature, T a = 2 2 C Time t i n minutes

Urgent!!! Solve part BtoG.
t=9mins
Ambient Temperature, Ta=22C
Time tin minutes & Liquid temperature in degree celsius ofT(t)at time t
9292
10281
11270
12259
13249
14239
15230
16221
17213
18205
19197
20189
21182
22175
23169
24163
25157
26151
27145
28140
29135
30130
31126
32121
33117
34113
B. You are given the Newton's Law of Cooling ddtT(t)=k[T(t)-Ta],to model your data,
where T(t)is the temperature of the object at time t,Tais the ambient temperature, and kis the growth constant.
Derive an exponential decay equation (Hint: General Solution) from the given Newton's Law of Cooling above using:
(i) Separable Variables method and,
(20 marks)
(ii) Integration Factor method.
(20 marks)
C. Using the General Solution from either B(i)orB(ii)to determine the following:
(i) the Particular Solution using the given data.
(ii) the initial temperature Ti(Hint: tat9 min mark is not the initial time).
D. Using the derived exponential decay equation inC, determine how much time is needed for the object to cool to half its initial temperature, 12Ti.(10 marks)
E. Show mathematically thatk tHalftime=-ln2, where ?(Halftime ),is the time taken for the object to cool to half its initial temperature difference.
Hint: Let Td(t)=T(t)-Ta, where Tdis the temperature difference. (Do not use the given numerical data to prove the above)
F. Instead of the exponential half-time decay expression ktHalttime=-ln2, derive the expression for the exponential doubling time growth.
G. State one similarity and one difference between the doubling time and the half time of exponential growthdecay equations?
Urgent!!! Solve part B t o G . t = 9 mins Ambient

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