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Luba_88 [7]
3 years ago
9

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation PV = 8.31T, where P is measured in k

ilopascals, V in liters, and T in kelvins. Use differentials to find the approximate change in the pressure if the volume increases from 10 L to 10.3 L and the temperature decreases from 330 K to 320 K. (Note whether the change is positive or negative in your answer. Round your answer to two decimal places.)
Physics
1 answer:
quester [9]3 years ago
4 0

Answer:

The pressure will decrease by about 16.53 kPa.

Explanation:

Given that,

The equation is

PV=8.31 T...(I)

We need to calculate the initial pressure

Using given equation

PV=8.31 T

Put the value into the formula

P=\dfrac{8.31\times330}{10}

P=274.23\ kPa

The volume increase from 10 L to 10.3 L.

dV=10.3-10=0.3\ L

The temperature decrease from 330 K to 320 K.

dT=320-330=-10\ K

We need to calculate the change in the pressure

Now, on differentiating equation (I)

d(PV)=8.31dT

PdV+VdP=8.31 dT

Put the value into the formula

274.23\times0.3+10\times dP=8.31\times(-10)

dP=\dfrac{-8.31\times10-274.23\times0.3}{10}

dP=−16.53\ kPa

Hence, The pressure will decrease by about 16.53 kPa.

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