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Thermodynamics and Thermochemistry
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Isothermal, adiabatic, isobaric, isochoric processes for ideal gases
NEET level
Single correct option
Difficulty 1 of 3
td167
An ideal gas is compressed reversibly in a perfectly insulated cylinder (
q
=
0
). Its temperature will
A
decrease
B
remain constant
C
first decrease and then increase
D
increase
Answer: D
In an adiabatic process
q
=
0
, so
Δ
U
=
w
. Compression makes
w
>
0
, hence
Δ
U
>
0
and, for an ideal gas, the temperature rises.
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