JEE Main 2021 (3 Aug, Shift 2) Physics Q3: Thermodynamics

Question

One mole Argon gas is sealed inside a thermally isolated chamber of 1 litre. A 100 W heater kept inside the chamber is switched on for 30 seconds. What will be the rise in temperature of the Argon gas? [R = 8.314 J mol

^{-1}

K

^{-1}

]

(1) $144.3$ K
(2) $240.5$ KOfficial answer
(3) $300.2$ K
(4) $360.8$ K

Official answer

Option 2

NTA final key.

Accepted Answer

Option 2: $240.5$ K

Answer

$144.3$ K

Answer

$240.5$ K

Answer

$300.2$ K

Answer

$360.8$ K

JEE Main 3 August 2021, Shift 2, Physics Q3

Same idea in other shifts