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What is Delta U for the process describe...

What is `Delta U` for the process described by figure. Heat supplied during the process q= 100kJ

A

`+50kJ`

B

`-50kJ`

C

`-150kJ`

D

`+150kJ`

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta U = q + W`
W = area under graph `= (1)/(2) xx 1 xx (1 +2) = (3)/(20 xx 10^(5)N - m^(2)`
`Delta U = +100 - (3)/(2) xx (10^(5))/(1000) = 100-150= -50J`
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