Find the temperature in degree Celsius if the volume and pressure of 2 moles of an ideal gas are $20\,\text{dm}^3$ and $4.926\,\text{atm}$ respectively. ($R = 0.0821\,\text{dm}^3\text{atm K}^{-1}\text{mol}^{-1}$)
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Chemistry Tip: Always double-check the requested units for the final answer. The ideal gas law inherently outputs temperature in Kelvin. Failing to convert it back to Celsius (Option C vs Option B) is a very common trap.