How Much Energy Must Be Removed from a 94

question 101

Multiple Choice

How much energy must be removed from a 94.4 g sample of benzene (molar mass = 78.11 g mol^-1) at 322.0 K to solidify the sample and lower the temperature to 205.0 K? The following physical data may be useful: Δ_vapH = 33.9 kJ mol^-1
Δ_fusH = 9.8 kJ mol^-1
C_liq = 1.73 J g^-1 °C^-1
C_gas = 1.06 J g^-1 °C^-1
C_sol = 1.51 J g^-1 °C^-1
T_melting = 279.0 K
T_boiling = 353.0 K

• A)17.6 kJ
• B)11.8 kJ
• C)70.2 kJ
• D)10.5 kJ
• E)29.4 kJ

---

Definitions:

Budget Line

A graphical representation of all possible combinations of two goods which can be purchased with a given budget at specific prices.

Equilibrium Position

A situation in which the supply and demand in the market are equal, leading to stable prices.

Quantity of Y

A term indicating the amount or volume of a product or commodity denoted by 'Y', often measured in units or quantities.

Downsloping Demand Curve

Illustrates the inverse relationship between the price of a good or service and the quantity demanded, indicating that demand decreases as price increases.