The density at STP will be 3 gm/lit.

**Q: What will be the density of the gas at STP if its density is found to be 5.46 g/dm3 at 27 ∘C and 2 bar pressure?**

The density at STP will be 3.0 g dm−3.

**Q: What is the concept behind finding the density of a gas at STP?**

The concept is that at STP, the gas is at 1 bar pressure and 273K temperature.

**Q: How can we calculate the density of a gas using the given data of 5.46 g/dm^3 at 27°C and under 2 bar pressure?**

We can use the formula Density ρ = p x M/ RT, where p is the pressure, M is the molar mass, R is the gas constant, and T is the temperature.

**Q: What are the known variables needed to calculate the density of the gas?**

We need the values of pressure (2 bar), temperature (27°C), and molar mass (M) of the gas.

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