Answer:
Explanation:
This is just a ratio question. Factor of increase = 27.2 / 3.20 = 8.50
Answer : The ratio of effusion rates for helium and argon is 3.2 : 1
Solution : Given,
Molar mass of Helium = 4 g/mole
Molar mass of Argon = 40 g/mole
Rate of effusion : It is defined as the rate of effusion of a gas is inversely proportional to the square root of the molar mass of the gas.
Formula used :

where, M is the molar mass.

Now put all the given values in this expression, we get

Therefore, the ratio of effusion rates for helium and argon is 3.2 : 1
Answer:
i hope it helps
Explanation:
This reaction involve an acid (HCl) reacting with a base (NaOH), producing a salt (NaCl) and water. Therefore it's a neutralization reaction.
D is the answer and I think you will pass whatever assignment you r doing
Answer:
The temperature to the nearest 0.5°C is 98.5°C