A vessel contains 1.6g of dioxygen at STP(273.15k,1atm pressure). The gas is now trasnferred to another vessel at constnat temperature. Whre pressure becomes half of the original pressure. Calculate
( a) Volume of the new vessel.
(b) number of molecuels of dioxygen.

Explanation

To solve the problem step by step, we will follow these calculations:

### Given Data:
- Mass of dioxygen (O₂) = 1.6 g
- Molar mass of O₂ = 32 g/mol
- Initial pressure (P₁) = 1 atm
- Final pressure (P₂) = 0.5 atm (half of P₁)
- Temperature = Constant (STP, 273.15 K)
...