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An ideal gas undergoes isothermal compression from 5 m3 against a constant external pressure of 4 Nm−2. Heat released in this process is used to increase the temperature of 1 mole of A1. If molar heat capacity of A1 is 24 J mo1−1 K−1, the temperature of A1 increases by

(a)

(b)

(c)

1K

(d)

2K



Question ID - 52177 | SaraNextGen Top Answer

An ideal gas undergoes isothermal compression from 5 m3 against a constant external pressure of 4 Nm−2. Heat released in this process is used to increase the temperature of 1 mole of A1. If molar heat capacity of A1 is 24 J mo1−1 K−1, the temperature of A1 increases by

(a)

(b)

(c)

1K

(d)

2K

1 Answer
127 votes
Answer Key / Explanation : (b) -

Work done on isothermal irreversible for ideal gas

=−pext (v2−v1)

=−4N/m2(1m3−5m3)

=16 Nm

Isothermal process for ideal gas

=0

q=−w

=−16 Nm

=−16 J

Heat used to increase temperature of A

q=n CT

16 J=1×24

T=

127 votes


127