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JEE Main PAPER - 1

JEE Main · 2018

180 questions · One at a time

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MCQ4 marks

Two moles of an ideal monoatomic gas occupies a volume V at 27∘C27^\circ\text{C}  . The gas expands adiabatically to a volume 2 V. Calculate (a) the final temperature of the gas and (b) change in its internal energy.

  • A.189 K189 \text{ K}   (b) −2.7 kJ-2.7 \text{ kJ}Correct
  • B.195 K195 \text{ K}   (b) 2.7 kJ2.7 \text{ kJ}
  • C.189 K189 \text{ K}   (b) 2.7 kJ2.7 \text{ kJ}
  • D.195 K195 \text{ K}   (b) −2.7 kJ-2.7 \text{ kJ}
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