By what ratio the average velocity of the molecule in gas change when the temperature is raised from 50 to 200°C?
1.21/1
1.46/1
1.14/1
4/1
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At 27°C a closed vessel contains equal weight of He, CH4 and SO2 exerts a pressure of 210 mm and partial pressures of He, CH4 and SO2 are P1, P2 and P3. Which one of the following is correct?