Question

42
IT the amount of
of heat
heat given to
system is 35 I and
the amount
of 아
the system
work
IS I
the the change
internal energy
of the system
is​

Answer 1

Answer:iven,

ΔQ=+35J

ΔW=−15J

ΔU=?

From law of thermodynamic,

ΔQ=ΔU+ΔW

ΔU=ΔQ−ΔW

ΔU=35−(−15)

ΔU=35+15

ΔU=50J

The correct option is D.

Explanation: