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AURORKA [14]
2 years ago
7

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{?}
5 0
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=?

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

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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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