JEE Main 2019 — Chemistry Physical Chemistry

2019mcqeasy

Among the following, the set of parameters that represents path functions, is:

i) $q+w$

ii) $q$

iii) $w$

iv) $H-TS$

Official previous-year question

Held on 9 Apr 2019 · Verified 6 Jul 2026.

Options

A
$(ii)$ and $(iii)$
B
$(i), (ii),$ and $(iii)$
C
$(ii), (iii)$ and $(iv)$
D
$(i)$ and $(iv)$

Did you get this right?

Solution

State function:

It is a property of which value does not depend on the path only depends upon the initial and final point

Like: Internal energy $(U)$ , Gibb's free energy $(G)$

Path function: Does not depend upon the initial and final point like heat energy $(q)$ and work done $(w)$ .

$(A) \text{q}+\text{w}=\Delta \text{U}\leftarrow \text{definite quantity}$

$(B) q\rightarrow$ Path function

$(C) w\rightarrow$ Path function

$(D) H-TS=G\rightarrow$ State function.

$\therefore$ Answer is $(1)$

Your note

JEE Main Physical Chemistry in other years

Physical Chemistry 2026 Physical Chemistry 2025 Physical Chemistry 2024 Physical Chemistry 2023 Physical Chemistry 2022 Physical Chemistry 2021 Physical Chemistry 2020 Physical Chemistry 2018 Physical Chemistry 2017 Physical Chemistry 2016 Physical Chemistry 2015 Physical Chemistry 2014

Keep practicing Physical Chemistry

Work through every JEE Main Physical Chemistry PYQ, year by year.

Browse all Chemistry topics

Solution

State function:

It is a property of which value does not depend on the path only depends upon the initial and final point

Like: Internal energy $(U)$ , Gibb's free energy $(G)$

Path function: Does not depend upon the initial and final point like heat energy $(q)$ and work done $(w)$ .

$(A) \text{q}+\text{w}=\Delta \text{U}\leftarrow \text{definite quantity}$

$(B) q\rightarrow$ Path function

$(C) w\rightarrow$ Path function

$(D) H-TS=G\rightarrow$ State function.

$\therefore$ Answer is $(1)$

JEE Main 2019 — Chemistry Physical Chemistry

Options

Did you get this right?

Solution

Your note

JEE Main Physical Chemistry in other years

More JEE Main Physical Chemistry questions

Other Chemistry topics for JEE Main

Organic Chemistry

Inorganic Chemistry

Keep practicing Physical Chemistry

JEE Main 2019 — Chemistry Physical Chemistry

Options

Did you get this right?

Solution

Your note

JEE Main Physical Chemistry in other years

More JEE Main Physical Chemistry questions

Other Chemistry topics for JEE Main

Organic Chemistry

Inorganic Chemistry

Keep practicing Physical Chemistry