1. What is the relationship between temperature and pressure of a gas in a closed system?

2. What is the relationship between the pressure and volume of a gas at a constant temperature

1) They are directly proportional

2) They are also inversely proportional

Explanation:

1. as the temperature increases, the pressure also increases. and vice versa.

2. however, as the volume increases, the pressure decreases. and if the volume decreases, the pressure increases.