Final answer:
The question does not provide enough information to calculate the final volume of the gas at 17 °C and 665 mmHg. The initial conditions of the gas or another property is needed to use the combined gas law or ideal gas law to find the final volume.
Step-by-step explanation:
The final volume of the gas at 17 °C (which is 290 K when converted from Celsius to Kelvin) and 665 mmHg cannot be determined from the information given alone. To find the final volume, we'd need to know either the initial conditions or another property of the gas using the combined gas law or the ideal gas law. However, if this is related to any of the exercises provided, more data must be given to proceed with calculations. The combined gas law (P1V1/T1 = P2V2/T2) can be applied if the initial conditions of the gas are known. Please provide the initial volume, pressure, and temperature to calculate the final volume or any other missing variable if the number of moles remains constant.