After a 27-hour heat treatment at 1000°c (and subsequent cooling to room temperature), the concentration of a is 3.8 wt% at the 14.4-mm position within metal b. if another heat treatment is conducted on an identical diffusion couple, this time at 880°c for 27 hours, at what position will the composition be 3.8 wt% a? the preexponential and activation energy values for the diffusion of a in b are 3.7 × 10-6 m2/s and 152 kj/mol, respectively. x = enter your answer in accordance to the question statement mm

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:

i dont know the answer but good luck

explanation:

answer:

true

c

explanation:

answer:

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