ME 302
Thorncroft
HW #1
SHOW ALL WORK.
FOR THIS ASSIGNMENT ONLY
, YOU MAY PUT MORE THAN ONE PROBLEM ON A PAGE.
1
-
1
a.
How much does 3 kg weigh on the Earth, in N?
b.
How much does a person with a mass of 183 lb
m
weigh on the moon (lb
f
)? (The moon’s
gra
vity is one
-
sixth the Earth’s)
c.
A gallon of water weighs about 8 lb
f
on Earth. What is its mass in slugs?
1
-
2 Convert the following:
a.
-
1
C to degrees Fahrenheit
b.
103
F to degrees Rankine
c.
237
K to degrees Celsius
d.
A temperature
difference
of 10 degrees
Celsius to degrees Kelvin.
e.
A temperature
difference
of 10 degrees Rankine to degrees Fahrenheit.
f.
A temperature difference of 10 °C to °F.
1
-
3 The following table lists temperatures and specific volumes of water at two pressures:
p = 0.1 MPa
p = 0
.12 Mpa
T (
䌩
v ⡭
3
/kg)
T (
䌩
v ⡭
3
/kg)
200
2.172
200
1.808
240
2.359
240
1.965
Use linear interpolation to estimate:
a.
v at p = 0.1 MPa, T=213
C.
b.
p at T = 240
C, v = 2.000 m
3
/kg.
1
-
4
How many moles of oxygen (O
2
) are contained in .03 kg?
1
-
5
Using the I
deal Gas law, determine the volume, in m
3
, occupied by 1 mol of nitrogen (N
2
) at p = 17
MPa, T = 180 K.
1
-
6
Integrate the following:
a.
, where
p=1/V.
c.
, where
p
= constant.
b.
, where
=constant.
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