1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tekilochka [14]
3 years ago
9

Biacetyl, the flavoring that makes margarine taste "just like butter," is extremely stable at room temperature, but at 200°C it

undergoes a first-order breakdown with a half-life of 9.0 min. An industrial flavor-enhancing process requires that a butter-flavored food be heated briefly at 200°C. How long can the food be heated at this temperature and retain 74% of its buttery flavor?
Chemistry
1 answer:
SIZIF [17.4K]3 years ago
5 0

Answer:

3.91 minutes

Explanation:

Given that:

Biacetyl breakdown with a half life of 9.0 min after undergoing first-order reaction;

As we known that the half-life for first order is:

t__{1/2}}= \frac{0.693}{k}

where;

k = constant

The formula can be re-written as:

k = \frac{0.693}{t__{1/2}}

k = \frac{0.693}{9.0 min}

k = 0.077 min^{-1}

Let the initial amount of butter flavor in the food be (N_0) = 100%

Also, the amount of butter flavor retained at 200°C (N_t)= 74%

The rate constant k = 0.077 min^{-1}

To determine how long can the food be heated at this temperature and retain 74% of its buttery flavor; we use the formula:

\frac{N_t}{N_0}= -kt

t = - (\frac{1}{k}*In\frac{N_t}{N_0}  )

Substituting our values; we have:

t = - (\frac{1}{0.077}*In\frac{74}{100}  )

t = 3.91 minutes

∵ The time needed for the food to be heated at this temperature and retain 74% of its buttery flavor is 3.91 minutes

You might be interested in
Esters are generally pleasant smelling compounds<br>True<br>False​
Rzqust [24]

Answer:

True

Explanation:

Esters are generally pleasantly smelling compounds. In fact, the fragrance industry uses esters to produce perfume, as well as uses esters as an ingredient to produce synthetic flavours and cosmetics, all of which have unique and pleasant smells.

8 0
3 years ago
Which gas would act most like an ideal gas? a. chlorine gas at 32oC b. chlorine gas at -185oC
Maslowich
A as the lower temperature in Celsius corresponds to a lower Kelvin temperature thus reducing movement
6 0
3 years ago
Most elements are ____________. The _____________ elements on the left of the stair-step line on the ______________ of Elements
Vlada [557]

Answer:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster  , malleable , ductile, opposite , shiny, moderately

Explanation:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster  , malleable , ductile, opposite , shiny, moderately Is the answer.

(Hope this helps can I pls have brainlist (crown)☺️)

4 0
2 years ago
For a price ceiling to be a binding constraint on the market, the government must set it a above the equilibrium price. b below
beks73 [17]

Answer:

B. Below the equilibrium price

Explanation:Price ceiling is the legal price,impose by The Government or Regulatory agencies above which a product should not be sold. It is also a price control mechanism through which the Government and other Regulatory agencies check the excesses of producers and the middle men(Whole sellers and retailers). The price ceiling has to be fixed below the equilibrium price for it to be binding, because businesses are interested mainly for profit maximization.

4 0
3 years ago
One type of cat has the scientific name Felis domesticus, while another type of cat is called Felis tigris. What can be correctl
kykrilka [37]
A is the correct answer
3 0
3 years ago
Other questions:
  • What is a manipulated variable
    15·1 answer
  • Why are some metals reactive than others?
    9·2 answers
  • When comparing anions from the same group, larger size of A in the H-A bond increases / decreases (circle the correct answer) ac
    13·1 answer
  • What is the molar mass of Fe(NO3)2?
    14·1 answer
  • A solution of ethanol (c2h5oh) in water is prepared by dissolving 75.0 ml of ethanol (density 0.79 g/cm3 ) in enough water to ma
    14·1 answer
  • What type of energy is used to make electrical power from tides
    9·2 answers
  • Jumping on a cemented floor is more pain full than a sandy flour,why​
    15·1 answer
  • When is national chocolate milkshake day?
    8·1 answer
  • Pls help lollollolljdjdjdjdjjdjjzjzjsjsjsis
    6·1 answer
  • An experiment was designed to test the hypothesis that peanuts have more energy than a chip. The experiment determines calorimet
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!