A block of dry ice (solid CO₂, density = 1.56 g/mL)of dimensions 25.0 cm × 25.0 cm × 25.0 cm is left to sublime (i.e.to pass from the solid phase to the gas phase)in a closed chamber of dimensions 4.00 m × 5.00 m × 3.00 m.The partial pressure of carbon dioxide in this chamber at 25°C will be A)0.171 mmHg B)0.225 mmHg C)14.4 mmHg D)107 mmHg E)171 mmHg

Question

Quizplus · Accepted Answer

To find the partial pressure of CO₂, calculate the volume of the dry ice block and convert it to mass using its density. Then, convert the mass to moles using the molar mass of CO₂. Use the ideal gas law (PV=nRT) to find the pressure, considering the volume of the chamber and the temperature. The correct calculation gives a partial pressure of approximately 171 mmHg.

A Block of Dry Ice (Solid CO2, Density = 1

A Block of Dry Ice (Solid CO₂, Density = 1