Question

A fixed volume of a gas occupies 228cm cube at 27 degree centigrade and 70 cm of Hg. What is its volume at STP?

Answer 1

Answer:

Explanation:

Here,

228+70=298

And,

298+ 27=325

Volume

325

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Answer 2

The volume occupied by the gas at STP is equal to 191.1 cubic centimeters.

• At STP, the pressure of the gas is taken to be 1 bar which is equivalent to 76 cm of mercury and the temperature is taken to be equal to 273 K or 0°C.
• The temperature 27 degree celcius is equivalent to 300 K.
• Now from the combined gas law, P.V/T= constant.
• Using the above law and substituting the values of initial and final pressure and temperature,and the initial volume, we get the final volume to be equal to 191.1 cubic centimeters.