1
NEET 2023
+4
-1

Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?

A
$$\Delta \mathrm{H}=\Delta \mathrm{U}+\Delta \mathrm{n_g R T}$$
B
$$\Delta \mathrm{H}-\Delta \mathrm{U}=-\Delta \mathrm{nRT}$$
C
$$\Delta \mathrm{H}+\Delta \mathrm{U}=\Delta \mathrm{nR}$$
D
$$\Delta \mathrm{H}=\Delta \mathrm{U}-\Delta \mathrm{n_g R T}$$
2
NEET 2022 Phase 2
+4
-1

One mole of an ideal gas at 300 K is expanded isothermally from 1 L to 10 L volume. $$\Delta$$U for this process is :

(Use R = 8.314 J k$$-$$1 mol$$-$$1)

A
0 J
B
1260 J
C
2520 J
D
5040 J
3
NEET 2022 Phase 2
+4
-1

A vessel contains 3.2 g of dioxygen gas at STP (273.15 K and 1 atm pressure). The gas is now transferred to another vessel at constant temperature, where pressure becomes one third of the original pressure. The volume of new vessel in L is : (Given : molar volume at STP is 22.4 L)

A
67.2
B
6.72
C
2.24
D
22.4
4
NEET 2022 Phase 1
+4
-1

Which of the following p-V curve represents maximum work done?

A
B
C
D
EXAM MAP
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NEET