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18 questions
Which of the following are ways in which energy can be transferred to or from a substance?
a. heat and internal energy
b. work and internal energy
c. heat and work
d. heat and kinetic energy
What is a set of particles or interacting components that is considered a distinct physical entity called?
a. an engine
b. a system
c. an environment
d. an ideal gas
How much work is done by 0.020 m3 of gas if its pressure increases by 2.0 x105 Pa and the volume remains constant?
a. 0 J
b. -4.0 x 103 J
c. 4.0 x103 J
d. 1.0 x107 J
Pressure equal to 2.5 x105 Pa is applied to a gas, causing its volume to change by -2.0x10-3 m3. How much work is done?
a. 0 J
b. -5.0x107 J
c. -450 J
d. -500
For an isovolumetric process, which of the following statements is correct?
a. Work, heat, and internal energy all undergo changes.
b. Work and heat balance each other, so that there is no change in internal energy.
c. No energy is transferred as heat; internal energy change is due to work.
d. No work is done; internal energy change is due to heat.
For an isothermal process, which of the following statements is correct?
a. Work, heat, and internal energy all undergo changes.
d. No work is done; internal energy change is due to heat.
c. Work and heat balance each other, so that there is no change in internal energy.
d. No energy is transferred as heat; internal energy change is due to work.
For an adiabatic process, which of the following statements is correct?
a. Work, heat, and internal energy all undergo changes.
b. Work and heat balance each other, so that there is no change in internal energy.
c. No energy is transferred as heat; internal energy change is due to work.
d. No work is done; internal energy change is due to heat.
Gas within a piston is compressed from a volume of
1.35x10-2 m3 to a volume of 12.5x10-3 m3. What quantity of work is done if the compression occurs under a constant pressure of 4.0x105 Pa?
200 J
-200 J
400 J
-400 J
A gas is enclosed in a container fitted with a piston. The applied pressure is maintained at 599.5 kPa as the piston moves inward,which changes the volume of the gas from 5.317 × 10^−4 m3 to 2.523 × 10^−4 m3. How much work is done?
162.5 J
-165.7 J
-167.5 J
0J
A gas is enclosed in a container fitted with a piston. The applied pressure is maintained at 599.5 kPa as the piston moves inward,which changes the volume of the gas from 5.317 × 10^−4 m3 to 2.523 × 10^−4 m3. The work is done?
on the gas
by the gas
No work is done
inward the piston
During phase change ____________________ does not change.
pressure
temperature
work
volume
Potential and Kinetic energy is also known as _________________.
geothermal energy
kinesthetic
mechanical energy
thermal energy
Symbol that indicates that energy is released.
U
Q
-Q
W
Specific heat capacity for water is ___________.
129 J/jkg * C
4186 J/jkg * C
138 J/jkg * C
1487J/jkg * C
The reverse of heat vaporization is ___________________.
condensation
evaporation
melting
freezing
Rapidly inflating of balloon under a pumping machine.
adiabatic
isovolumetric
isochoric
Isothermal
During systole stage ventricles of heart contracts.
a. adiabatic
b. isothermal
c. isovolumetric
d. isobaric
A 0.10 kg ball falls 10.m onto a hard floor and then bounces back up to 9.0m. How much of its transformed to the internal energy of the ball and the floor?
0.78 J
0.98 J
0.89 J
0J
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