Question

a)
Define
isothermal
process
and
calculate
workdone
in
an


isothermal
process.



b)
A
system
is
provided
with
200
cal
of
heat
and
the
work
done
by


the
system
on
the
surroundings
is
40
joule.
Calculate
the
change
in


internal
energy.​

Answer 1

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Answer 2

Answer:

Explanation:

An isothermal process is a thermodynamic process in which the temperature of a system remains constant. The transfer of heat into or out of the system happens so slowly that thermal equilibrium is maintained.

Work done in Isothermal process

In an isothermal process temperature remains constant. ... That is, in an isothermal expansion, the gas absorbs heat and does work while in an isothermal compression, work is done on the gas by the environment and heat is released.

A system is provided with 200 cal of heat and the work done by the system on the surrounding is 40J. Then its internal energy. ⇒ΔU=ΔQ-ΔW=840-40=800J