Gay-Lussac's Law Review

The relationship of which two variables are compared in Gay-Lussac’s Law?

• pressure & volume
• volume & temperature
• temperature & pressure
• volume & moles (amount of gas)

What temperature scale must all temperature measurements be converted to?

• Celsius
• Fahrenheit
• Kelvin
• Does not matter

Pressure and temperature have a(n) _________ proportionality.

• direct
• inverse
• linear
• exponential

What is the formula for Gay-Lussac’s Law?

• P₁/T₁ = P₂/T₂
• P₁/V₁ = P₂/V₂
• T₁/P₁ = T₂/P₂
•  P₁•T₁ = P₂ • T₂

Bill Belichick uses a lot of hairspray to keep his hair looking good while coaching an entire game. If his can of hairspray has an initial temperature of 22°C and a pressure of 18.5 psi, what would be the final temperature of the gas is the pressure decreases to 16.9 psi after use?

• 176 K
• 322 K
• 323 K
• 269 K

Tags

NGSS.HS-PS3-1

The oxygen tanks on the sideline can be very dangerous if heated. Suppose an oxygen tank has a pressure of 120 atm at a room temperature of 25°C. If the temperature on the turf or field increases to 51°C, what will the resulting pressure of the oxygen tank be if the volume and amount of gas does not change?

• 130 atm
• 804 atm
• 1.30 atm
• 254 atm

Tags

NGSS.HS-PS1-5

Waiting to play the Broncos, the Patriots notice the change in the barometric pressure that occurs when arriving in Denver, CO. In Boston, if the temperature is 25°C at a barometric pressure of 101.3 kPa, what would the temperature of the air be if the barometric pressure decreased to that of Denver’s; 84.0 kPa?

• 175 K
• 247 K
• 247 L
• 28.5 K

How do you convert C to Kelvin (K)?

• C + 273

• C x 273

• C / 273

• C + 32 + 273

Using Gay-Lussac's law, if the pressure of a gas starts out at 200kPa and increases to 600kPa, what would the initial temperature be if it ended up at 300K?

• 50K
• 200K
• 400K
• 100K

A gas has a pressure of 2.3 atm. If its temperature was decreased to -54 °C and its new pressure was 1.8 atm, what was its original temperature?

• 280 K

• 69 K

• 340 K

• -55 K