2 years ago

Please help me.......

Mathematics

1 answer:

s344n2d4d5 [400]2 years ago

4 0

Answer:

x=206

Step-by-step explanation:

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The gas law for an ideal gas at absolute temperature T (in kelvins), pressure P (in atmospheres), and volume V (in liters) is PV

JulijaS [17]

Answer:

$\frac{dT}{dt}=3.78^{\circ}K/min$

Step-by-step explanation:

We have to calculate the time derivative of T=PV/nR with P and V variable and n and R constants. This is:

$\frac{dT}{dt} =\frac{d\frac{PV}{nR}}{dt}=\frac{1}{nR}\frac{d(PV)}{dt}$

What we have to do is the derivative of a product:

$\frac{d(PV)}{dt}=P\frac{dV}{dt}+V\frac{dP}{dt}$

Substituting, we have:

$\frac{dT}{dt} =\frac{P\frac{dV}{dt}+V\frac{dP}{dt}}{nR}$

where all these values are given since the time derivatives of P and V are their variation rate, using minutes.

We then substitute everything, noticing that already everything is in the same system of units so they cancel out:

$\frac{dT}{dt}=\frac{P\frac{dV}{dt}+V\frac{dP}{dt}}{nR}=\frac{(8atm)(0.16L/min)+(13L)(0.14atm/min)}{(10mol)(0.0821Latm/mol^{\circ}K)}$

And then just calculate:

$\frac{dT}{dt}=3.78^{\circ}K/min$

6 0

2 years ago

I need help please anybody

Artemon [7]

$\sqrt{?}$

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2 years ago

Which system of equations has the same solution as the system below? 3x+3y=8 and 2x-y=5

skad [1K]

3x+3y=8 2x-y=5

y=-x+8/3 y=2x-5

4 0

2 years ago

Read 2 more answers

If(2scos(pi/6) +2i sin(pi/2))^n =-64...n=??

MrRa [10]

Answer:

$(2scos(pi/6) +2i sin(pi/2))^n =-64...n=$ ?

(2scos(pi/6) +2i sin(pi/2))^n =-64...n=?

Step-by-step explanation:

$(2scos(pi/6) +2i sin(pi/2))^n =-64...n=?$

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2 years ago

jocelyn mowed a lawn that is 722 1/2 square yards. Her brother mowed a lawn that is 842 18/25 square yards. How many square yard

cricket20 [7]

Together they mowed 1565 11/50 square yards. You have to make the fractions have same denominators so you can add, after fixing the denominators, just add.

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2 years ago