Which of the following expression is true regarding state of equation of gas (where , w = weight and M = molar mass)?

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T1T2=M1w2M2w1

T1T2=M2w1M1w2

T1T2=M1w1M2w2

T2T1=M1w1M2w2

answer is A.

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Detailed Solution

pV=nRT (ideal gas equation) At constant pressure and volume,T∝1nT1T2=n2n1=w2M2×M1w1 =M1w2M2w1

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