Air pressure and Conversion
What do we use to measure air pressure?
A barometer
What happens to pressure if volume gets smaller?
Pressure increases
What type of mixture looks the same throughout?
Homogeneous
What does specific heat measure?
How much heat is needed to change temperature
Which letter represents the equilibrium constant?
K
What is normal air pressure in atm?
1 atm
Boyle's Law only works if what stays constant?
Temperature
Is cereal in milk heterogeneous or homogeneous?
Heterogeneous
What formula do we use for heat problems?
q= mc triangleT
Are liquids and solids included in equilibrium expressions?
No
How many mmHg are equal to 1 atm ?
760mmHg
What equation is used for Boyle's Law?
P1V1=P2V2
Why is salt water considered homogeneous?
Because the salt is evenly mixed in
What does the "m" stand for in q = mctriangleT
Mass
If K is greater than 1, are products or reactants favored?
Products
If a gas has 3 atm of pressure, what is it in mmHg?
2280 mmHg
A gas has a volume of 6L at 2 atm. If the pressure changes to 3atm, what is the new volume?
4L
What is one difference between heterogeneous and homogeneous mixtures?
Heterogeneous mixtures have visible different parts
If an object has high specific heat, does it heat u fast or slow?
Slow
For the reaction H2 + 12 - 2Hl, what would the equilibrium expressions look like?
K= [Hl]2 / [H2] [l2]
Which has more pressure: 760 mmHg or 2atm?
2atm
A Gas takes up 15L at 1atm. If the pressure changes to 5atm, what is the new volume?
3L
If you mix sand and water together, what kind of mixture is it?
Heterogeneous
How much heat is needed to heat 10g of water by 3C? (C= 4.18 J/gC)
125.4 J
What is the equilibrium expressions for 2SO2 + O2 - 2SO3?
K= [SO3]2 / [S02]2 [O2]