Answer:
More-massive gas molecules in the sample have lower rms speed than less-massive ones.
Explanation:
The rms speed is defined as the prediction that how fast the molecule travel at a given temperature.
Mathematically, rms speed can be written as,
Here, T is the temperature, M is the mass of gas molecule.
Now from this it is clearly seen that rms speed is inversely related with mass of the gas molecule.
Therefore, gas molecule which posses more mass in the sample have smaller rms speed than less-massive ones.
Answer:
15 cm
Explanation:
= Diameter of the coin = 15 mm
= Diameter of the image of coin = 5 mm
= distance of the coin from mirror = 15 cm
= distance of the image of coin from mirror = ?
Using the equation
= - 5 cm
= radius of curvature
Using the mirror equation
= - 15 cm
Answer:
The ballon would be inflated. The reason is that the sodium bicarbonate in baking soda reacts with acetic acid in vinegar to produce gas.
Explanation:
The main component of baking soda is sodium bicarbonate, .
Vinegar is mostly a solution of acetic acid in water.
Acids such as acetic acid react with carbonate salts. One of the products of such reactions is carbon dioxide , a gas.
In this question, when the acetic acid in vinegar reacts with sodium bicarbonate in the baking soda, the following reaction would occur:
.
The produced would then inflate the ballon placed on the opening of the bottle.