At steady state, air at 200 kpa, 52oc and a
massflow rate of 0.5kg/s enters an insulated duct having
differinginlet and exit cross-sectional areas. at the duct exit,
thepressure of the air is 100kpa, the velocity is 255m/s, and
thecross-sectional area is 2 x 10-3 m2.
assumingthe ideal gas model, determine
a) the temperature of the air at the exit,
inoc.
b) the velocity of the air at the inlet, in m/s
c) the inlet cross-sectional area, in m2.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

rawr

explanation:

answer: a

a is the answer

thanks you, 50