Chemistry · 2019
JEE Main · 9 April 2019, Shift 2 · Q55
During compression of a spring the work done is 10 kJ and 2 kJ escaped to the surroundings as heat. The change in internal energy, Δ U (in kJ ) is:
During compression of a spring the work done is $\displaystyle 10$ kJ and $\displaystyle 2$ kJ escaped to the surroundings as heat. The change in internal energy, $\displaystyle \Delta \mathrm{U}$ (in kJ ) is :
Official answer
(1)
$\displaystyle 8$
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JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.