Question

For many purposes, can we treat dimethyl ether as an ideal gas at temperatures above its boiling point of ______?

1) -10°C
2) 0°C
3) 10°C
4) 20°C

Answer 1

Dimethyl ether can be treated as an ideal gas at temperatures above its boiling point of -25°C, so the correct temperature for this condition is -10°C.

Step-by-step explanation:

For many purposes, we can treat dimethyl ether as an ideal gas at temperatures above its boiling point, which is -25°C. Since we are looking for a temperature above this boiling point to consider it as an ideal gas, the correct answer is 1) -10°C. At temperatures higher than the boiling point, dimethyl ether exists as a gas and its behavior more closely approximates that of an ideal gas, where intermolecular forces are negligible and the gas molecules occupy much less space relative to the space they are in.