EmSAT EmSAT Chemistry 6

Question 1

What is Boyle's Law for gases?

Accepted Answer

P ∝ 1/V (at constant T)

Answer

Boyle's Law states that at constant temperature, the pressure of a gas is inversely proportional to its volume: P ∝ 1/V, or PV = constant.

Question 2

What is the ideal gas law?

Accepted Answer

PV = nRT

Answer

The ideal gas law is PV = nRT, where P is pressure, V is volume, n is moles, R is the gas constant, and T is temperature in Kelvin.

Question 3

At STP, what is the molar volume of an ideal gas?

Accepted Answer

22.4 L/mol

Answer

At STP (Standard Temperature and Pressure: 0°C and 1 atm), one mole of any ideal gas occupies 22.4 liters.

Question 4

What does Charles's Law state?

Accepted Answer

Volume and temperature are directly proportional at constant pressure

Answer

Charles's Law states that at constant pressure, the volume of a gas is directly proportional to its absolute temperature (in Kelvin): V/T = constant.

Question 5

Which gas law relates pressure and temperature at constant volume?

Accepted Answer

Gay-Lussac's Law

Answer

Gay-Lussac's Law states that at constant volume, the pressure of a gas is directly proportional to its absolute temperature: P/T = constant.

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