Question

why is nitrogen dioxide a gas at room temperature

Answer 1

Nitrogen has a low melting and boiling point and is a gas at room temperature. ... Nitrogen isn't very reactive, but it can react with oxygen at high temperatures, such as in car engines. These reactions make nitrogen oxides. The boiling point of nitrogen is −196 °C, so liquid nitrogen is very cold indeed.

Answer 2

Answer:

1. Generally, compounds that are gases at room temperature are all 1COVALENT COMPOUNDS e. g. CO, NH3, CH4, etc

With a few exceptions,

2. gases at room temperature have relatively small molar masses e. g Molar mass of NO2 = 46.01