Question

An ideal gas expanded against 42 pascal external pressure by 10m3.if 350j heat is given to the system then ∆u of system in joule is

Answer 1

-70 J ........it may help

Answer 2

Answer:

-70j

Explanation:

p=42pascal=42 NM2(newton metre square)

change in vol. =10m3(metre cube)

w=-p multiplied change in vol.

w=-42 * 10=420NM=-420j

(Newton metre =joule)

for more explanation see in below