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99 Percentile Qs Bank for JEE MainChemistryThermodynamics (C)

The molar heat capacity of water at constant pressure P, is 75 J K - 1 m o l - 1 . When 1.0 kJ of heat is supplied to 100 g of water which is free to expand, the increase in temperature of water is

Options

  1. A1.2 K
  2. B2.4 K
  3. C4.8 K
  4. D6.6 K

Correct answer

B. 2.4 K

Step-by-step solution

q = n . C p Δ T 1000 = 100 18 × 75 × Δ T So Δ T = 2.4 K.

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