Question

A balloon has a volume of 1.0L at 21.0 degrees C and 750 mmHg. What is the balloon's volume at STP ?

Answer 1

Assume the gas to be ideal,

PV=nRT

P, V and T(in K, °C+273) are known.

R=8.314 in SI units.

Calculate n.

Now at STP,

P= 1bar

T= 273K.

n is now known.

Apply PV= nRT and find V.

Answer 2

Explanation:

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