Physics, 26.02.2020 21:05 christinaS7696

The blue curve is the plot of the data. The straight orange line is tangent to the blue curve at t = 40 s. A plot has the concentration of A in molar on the y axis and time in seconds on the x axis. A curve contains the points (0, 0.52), (20, 0.43), (40, 0.35), (60, 0.29), (80, 0.24), and (100, 0.20). A line touches the curve at (40, 0.35) and has a y intercept of (0, 0.48). Approximate the instantaneous rate of this reaction at time t = 40 s.

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Answer from: trintrin227

The instantaneous rate of reaction is the concentration change over a small time interval

At the point the point t = 40 s the instantaneous rate of reaction (the rate at which the concentration of A is decreasing) is 0.00325 M/s

Reason:

The given points in the plot of the concentration and time are;

$\begin{array}{|c|cc|}Time \ (s)&&Concentration \ (M)\\0&&0.52\\20&&0.43\\40&&0.35\\60&&0.29\\80&&0.24\\100&&0.20\end{array}\right]$

The slope of the curve at a point = The instantaneous rate of reaction

The slope of the curve at a point = The slope of the tangent to the curve at the point

The point at which the (tangent) line touches the curve is (40, 0.35)

The y-intercept of the tangent line is (0, 0.48)

The slope of the equation of the tangent line is given as follows;

$Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$Slope, \, \mathbf{m} \ of \, the \ tangent \, line =\dfrac{0.35-0.48}{40-0} = -0.00325$

Equation of the tangent line is y = -0.00325·x + 0.48

Therefore, by transitive property of equality, the rate of the reaction is -0.00325 M/s

The concentration of A in the reaction is decreasing at a rate of 0.00325 M/s at the point the point t = 40 s

Learn more about the instantaneous rate of reaction here:

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The blue curve is the plot of the data. The straight orange line is tangent to the blue curve at t =

Answer from: amanduhhhh

0.00325 moles/liter/second

Explanation:

The tangent line has a slope of (y2 -y1)/(x2 -x1) = (0.35-0.48)/(40-0) = -0.00325.

The rate of the reaction is about 0.00325 moles/liter/second.

_____

This is the rate of decrease of the concentration of A.

Answer from: Quest

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation

Answer from: Quest

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.

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