Air at a temperature of 15 oC passes through a heat exchanger at a velocity of 30 m/s, where its temperature is raised to 800 oC. It then enters a turbine with the same velocity of 30 m/s and expands until the temperature falls to 650 oC. On leaving the turbine, the air is taken at a velocity of 60 m/s to a nozzle where it expands until the temperature has fallen to 500 oC. If the air flow rate is 2 kg/s, calculate: (i) the rate of heat transfer to the air, (ii) (iii) the power output from the turbine assuming no heat loss, and the velocity at exit from nozzle, assuming no heat loss.

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:

a

explanation:

answer:

yes that is right have a good day