A certain mass of gas occupies a volume of `500 cm^(3)` at 0.9 atm and at a temperature 320K. What is its volume at NTP ?

Explanation

To find the volume of the gas at Normal Temperature and Pressure (NTP), we can use the Ideal Gas Law and the concept of conservation of moles. Here’s a step-by-step solution:

### Step 1: Identify the given values
- Initial volume (V1) = 500 cm³
- Initial pressure (P1) = 0.9 atm
- Initial temperature (T1) = 320 K
- NTP temperature (T2) = 273 K
- NTP pressure (P2) = 1 atm
...