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Questions and Answers

What is the relationship between the partial vapour pressure of a component and the mole fraction of that component in solution according to Raoult’s law?

$p_i = p_i / x_i$

$p_i = p_i x_i$ (correct)

$p_i = p_i - x_i$

$p_i = p_i + x_i$

What is the standard atmospheric pressure in pascals?

6894.76 Pa

1.013 x 10^5 Pa (correct)

105 Pa

133.32 Pa

Which pressure unit is equivalent to 1 torr?

133.32 Pa (correct)

6894.76 Pa

105 Pa

1.013 x 10^5 Pa

What does the mole fraction represent in a solution?

Number of moles of a component divided by the total number of moles of a solution Signup and view all the answers

How does vapor pressure influence the efficiency of deposition in the lungs from metered dose inhalers?

Determines the aerosol droplet size Signup and view all the answers

What does Raoult’s law allow the calculation of from the composition of a solution?

Vapor pressure Signup and view all the answers

Which statement is true about mole fraction?

It is a unitless expression Signup and view all the answers

In an ideal solution, what is the relationship between partial vapor pressure and mole fraction according to Raoult’s law?

$p_i = p_i xi$ Signup and view all the answers

What does the temperature of a substance measure?

The average kinetic energy of its particles Signup and view all the answers

What quantity does vapor pressure determine in metered dose inhalers?

Aerosol droplet size Signup and view all the answers