1. A room has a temperature of 68o F. What
is this temperature in degrees Celsius? ans1001
(29.0K)
2. The temperature on a summer day is 30o C. This
is equal to _______ oF. ans1002
(28.0K)
3. Express the 30o C temperature
in the previous problem in Kelvin. ans1003
(30.0K)
4. How much heat is required to raise the temperature
of 60 grams of water from 25o C to 85o C? ans1004
(43.0K)
5. How much heat must be added to 300 grams
of water at 100o C to convert it to steam at 100o C? ans1005
(35.0K)
6. Express 500 calories as its equivalent in
Joules. ans1006
(34.0K)
7. Work of 2000 J is done on an ideal gas which
experiences an internal energy increase of 800 J. Calculate the heat transferred
during this process and indicate whether heat was added to or removed from
the gas. ans1007
(44.0K)
8. The volume of a gas is increased from 2.0
m3 to 5.0 m3 while a constant pressure of 1500 Pa (1500
N / m2 ) is maintained. Calculate
the work done, and specify whether work was done on or by the gas. ans1008
(45.0K)
9. The internal energy of a system is increased
by 600 J while the system does work of 700 J. How much heat was transferred
to the system? Was
the heat transferred into or out of the system? ans1009
(44.0K)
10. A container of an ideal gas initially has
a volume of 2.0 m3 and a pressure of 1000 Pa (1000 N / m2). The
pressure is changed to 3000 N / m2 while the temperature remains
constant. Find the new volume of the gas. ans1010
(39.0K)
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