A gas under constant pressure of $4.5 \times {10^5}$ Pa when subjected to 800 kJ of heat changes the volume from$0.5{{\rm{m}}^3}$ to $2.0{{\rm{m}}^3}$. The change in the internal energy of the gas is

NEET UG PHYSICS MCQ: THERMODYNAMICS

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A gas under constant pressure of

4.5 \times {10^5}

Pa when subjected to 800 kJ of heat changes the volume from

0.5{\mathrm{m}^3}

2.0{\mathrm{m}^3}

. The change in the internal energy of the gas is

View answer and explanation

Correct option: D

1.25 \times {10^5}\mathrm{J}

Option D (

1.25 \times {10^5}\mathrm{J}

) is correct because the change in internal energy is calculated using the first law of thermodynamics, accounting for the work done at constant pressure.

NEET UG PHYSICS MCQ: THERMODYNAMICS

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