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Thermodynamics question

2025 · 7 Apr · Shift 2 · Q20

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JEE Main
Chemistry
Thermodynamics
2025 · 7 Apr · Shift 2 · Q20

Thermodynamics question

2025 · 7 Apr · Shift 2 · Q20

JEE MainChemistryThermodynamicsMCQ+4 / −1

The correct statement amongst the following is :

A
The standard state of a pure gas is the pure gas at a pressure of 1 bar and temperature 273 K.
B
$\Delta_f H^{\circ}_{500}$ is zero for $O_2(g)$ .
C
$\Delta_f H^{\circ}_{298}$ is zero for $O(g)$ .
D
The term 'standard state' implies that the temperature is 0°C.

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