## anonymous one year ago What object in the table has the slowest-moving molecules? Object A, Object B, Object C, or Object D?

1. anonymous

|dw:1433175410522:dw| O=object T=temperature (K)

2. anonymous

and here are the numbers just in case 250, 273, 273, 298

3. Michele_Laino

the speed of a molecule is proportional to the square root of the temperature of the gas to which that molecule belongs to, namely the quadratic mean velocity is given by the subsequent formula: $\Large {v_{RMQ}} = \sqrt {\frac{{3RT}}{M}}$ where R is the gas constant, T is the absolute temperature, and M is the molecular mass of a gas

4. anonymous

yes:) so how can we calculate? :/ what do we plug in?

5. Michele_Laino

we have to pick the gas with the highest temperature

6. Michele_Laino

oops. sorry, we have to pick the object with the littlest temperature

7. anonymous

ohh so the one with the slowest moving molecules would be Object D? :O

8. anonymous

ohh okay so it should be object A? is our solution?

9. Michele_Laino

yes! exactly!

10. anonymous

yay! thank you!

11. Michele_Laino

:)