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Quiz 1 - BWC20303

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

Do molecules generally move faster at 45 oC or 106 oC?

a)

45 oC because molecules have more energy than in 106oC

b)

106 oC because molecules have more energy than in 45oC

c)

106 oC because molecules have less energy than in 45oC

d)

45oC because molecules have less energy than in 106 oC

2.

When you place the metal in boiling water, heat flows from the _________ to the _______.

a)

metal to the boiling water

b)

bottom of the metal to the top half of the metal

c)

bottom of the water to the top of the water

d)

boiling water to the metal

3.

Specific Heat is..

a)

the temperature initial minus temperature final

b)

the amount of heat/energy required to raise 1 gram of a substance by 1°C (or K) aka "C"

c)

the temperature final minus temperature initial

d)

the item in a system with given weight in grams

4.

In an adiabatic process there is no _________ transfer between the gas and the surroundings.

a)

Kinetic Energy

b)

Work

c)

Thermal Energy

5.
What is true regarding CO2 for temperatures above 31 °C?
a)
It can never be liquified.
b)
It decomposes.
c)
It has a high pressure.
d)
It is a plasma.
6.
At 10 atm, dry ice is heated from -100 °C to 30 °C.  What changes occur?
a)
freezing, then condensation
b)
melting only
c)
sublimation only
d)
melting, then boiling
7.

The triple point of water is

a)

274.15K

b)

273.16K

c)

274.16K

d)

273.15K

e)

None of these

8.

The picture shows two completely identical mason jars. They're both filled with the same gas, only one of them has more in it (more molecules). What can you say about the pressures of both jars?

a)

P1 > P2 (greater pressure in jar 1)

b)

P1< P2 (greater pressure in jar 2)

c)

P1 = P2 (same pressure in both)

d)

There's not enough info to tell

9.

Process B on the PV diagram is an ______________ process.

a)

adiabatic

b)

isobaric

c)

isochoric

d)

isothermal

10.

Isothermal and adiabatic process are both represented with a curve on PV graph. Which of these is less steep?

a)

Isothermal

b)

Adiabatic