Match the terms in List I with their corresponding descriptions in List II:

List I (Term) List II (Description)
A. Adiabatic process i. At constant temperature
B. Isolated system ii. No transfer of heat
C. Isothermal change iii. Heat
D. Path function iv. No exchange of energy and matter

Codes:

A B C D
1. ii  iv  iii 
2. iii  iv  i ii
3. iv iii  i ii
4.  iv  ii i iii

Subtopic:  First Law of Thermodynamics | Classification of System, Extensive & Intensive Properties |
 85%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

The pressure-volume work for an ideal gas can be calculated by using the expression W=ViVfpexdV.

The work can also be calculated from the pV-plot by using the area under the curve within the specified limits.
An ideal gas is compressed (a) reversibly or (b) irreversibly from volume Vi to Vf.
The correct option is:

1. W(reversible)=W(irreversible)

2. W(reversible)<W(irreversible)

3. W(reversible)>W(irreversible)

4. W(reversible)=W(irreversible)+pex.V

Subtopic:  First Law of Thermodynamics |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

A sample containing 1.0 mol of an ideal gas undergoes an isothermal, reversible expansion to ten times its original volume in two separate experiments. The expansion is carried out at temperatures of 300 K and 600 K, respectively.

The correct statements among the following are:

(a) Work done at 600 K is 20 times the work done at 300 K.
(b) Work done at 300 K is twice the work done at 600 K.
(c) Work done at 600 K is twice the work done at 300 K.
(d) ∆ U = 0  in both cases.

1. (a) and (b)

2. (b) and (c)

3. (c) and (d)

4. (a) and (d)

Subtopic:  First Law of Thermodynamics |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

advertisementadvertisement

For a given reaction - 2 Zn(s)+O2(g)2ZnO(s),
H=-693.8kJmol-1

The correct statements among the following are :

a. The enthalpy of two moles of ZnO is less than the total enthalpy of two moles of Zn and one mole of oxygen by 693.8 kJ
b. The enthalpy of two moles of ZnO is more than the total enthalpy of two moles of Zn and one mole of oxygen by 693.8 kJ
c. 693 . 8   kJ mol -1  energy is evolved in the reaction
d. 693 . 8   kJ mol -1  energy is absorbed in the reaction

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, c)

Subtopic:  First Law of Thermodynamics |
 69%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital