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NEET 2020 Physics: Thermodynamics - 01 Quiz

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Question 1

A refrigerator takes heat from water at 0°C and transfer it to room at 27°C. If 100 kg of water is converted into ice at 0 °C then calculate the work done. (Latent heat of ice is 3.4 × 105 J/kg)

Question 2

Thermodynamic process shown in the following diagram.

Match the following:

Question 3

The energy released when 6 moles of octane is burnt in air will be [Given, ∆Hf for CO2(g), H2O(g) and C8H8(l), respectively are −490, −240 and +160 J/mol]

Question 4

Four different shapes of geometrical Lamina is cut from the shape of copper plate, square, triangle and rectangle. If the temperature of all four lamina is increased to T, then which shape has maximum change in its dimension.

Question 5

The P-V diagram of a system undergoing thermodynamics transformation is shown below. The work done by the system in going from A → B → C → D is 50 J. Heat given to the system is 80 J. Find the change in internal energy between A and E is.
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