Question

The heat of vaporization of diethyl ether is . Calculate the change in entropy when of diethyl ether boils at . Be sure your answer contains a unit symbol. Round your answer to significant digits.

Answer 1

`\Delta S=900(J)/(K)`

Step-by-step 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=(n\Delta h)/(T_b)`

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

`n=769.0g*(1mol)/(74.14g)=10.4mol`

`\Delta S=(10.4mol*26.7(kJ)/(ml) )/((34.6+273.15)K)\\\\\Delta S=0.900 (kJ)/(K) \\\\\Delta S=900(J)/(K)`

Best regards!