POSSIBLE You have four water samples at different temperatures. In which sample are the molecules vibrating at the fastest speed?
A. Water at -15°C
B.Water at 37°C
C.Water at 78°C
D. Water at 94°C
E.None of the above.

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Ответ:

Sparkledog

15.01.2020

Chemistry

Molar mass of sodium=23g
2 mole sodium gives 2 g H2
i.e 46g sodium gives 2g H2
so 65.4g will give=2.84g H2
now no. of molecules = 2.8/2*avogadros number

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POSSIBLE You have four water samples at different temperatures. In which sample are the molecules vibrating at the fastest speed? A. Water at -15°C B.Water at 37°C C.Water at 78°C D. Water at 94°C E.None of the above.