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balu736 [363]
3 years ago
6

The heat of vaporization of diethyl ether is . Calculate the change in entropy when of diethyl ether boils at . Be sure your ans

wer contains a unit symbol. Round your answer to significant digits.
Chemistry
1 answer:
natima [27]3 years ago
7 0

Answer:

\Delta S=900\frac{J}{K}

Explanation:

Hello!

In this case, since the information is not missing, the following one will be used as it is found on similar problems:

\Delta h=26.7kJ/mol\\T_b=34.6\°C\\m=769.0g

In such a way, we use the following equation to compute the entropy:

\Delta S=\frac{n\Delta h}{T_b}

Whereas n (moles) are computed by using its molar mass (74.14 g/mol) as follows:

n=769.0g*\frac{1mol}{74.14g}=10.4mol

\Delta S=\frac{10.4mol*26.7\frac{kJ}{ml} }{(34.6+273.15)K}\\\\\Delta S=0.900 \frac{kJ}{K} \\\\\Delta S=900\frac{J}{K}

Best regards!

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1) a solution with a hyrdrogen ion concentration of 1x10^-4 moles/liter would have a PH of what?
lana66690 [7]

Answer:

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