Chemistry Chapter 6 Gases
Terms
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- STP
- 0 degrees and 101 KPa
- SATP
- 25 degrees and 100 KPa
- Pressure is....
- force per unit area
- What are four physical properties of gases?
-
Always fill their containers
Are highly compressible
Diffuse
Temperature effects either the volume or the pressure of a gas - The pressure exerted by air
- Atmospheric pressure (1 atm)
- ________ effects either the volume or pressure of a gas
- Temperature
- Gases increase in volume and pressure when _______
- Heated
- At sea level, average atmospheric pressure is about....
- 101 KPa
- What does STP stand for?
- Standard temperature and pressure
- What does SATP stand for?
- Standard ambient temperature and pressure
- What is Boyle's Law?
- as the pressure on a gas increases, the volume of the gas decreases, other variables such as temperature and amount of gas remain constant.
- How can we write out Boyle's Law?
- V1P1= V2P2
- Convert 20 degrees celcius into Kelvin
- 293 K
- Convert 300K into degrees celcius
- 27 degrees celsius
- What are the temperatures in K of STP and SATP?
-
STP= 273 K
SATP=298 K - French physicist Jacques Charles determined the relationship between the ______ and ______ of a gas
- temperature and volume
- What number do you add to convert degrees celsius to kelvin?
- 273!!
- What does the Charles law state?
- The volume (V) increases proportionally as the temperature (T) increases
- What is the formula used in the Charles Law?
-
V1 = V2
-- --
T1 = T2 -
True or false
Temperature must be in Kelvin in the Charles Law? - True
- What do you call the Charles and Boyles Law when put together?
- The combined gas law
- What is the formula for the combined gas law?
-
p1v1 = p2v2
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T1 T2 - Molar mass is in...
- g/mol
- How do we calculate the molar mass?
-
1. Write the correct chemical formula
2.Find the atomic molar mass
3. Add together - What formula do we use when we need to find the relationship of amount in moles, mass and molar mass?
-
n= m
--
M - What is the molar volume of a gas at SATP?
- 24.8 L/Mol
- What is the molar volume of a gas at STP?
- 22.4 L/Mol
- Why is it easier to work with volume instead of the mass of a gas?
- It is much more convenient because it is more precise, since gases have such small amoounts of mass.
- what is the formula for molar volume?
-
n= v
---
V