Chemical Thermodynamics Question 461

Question: The molar heat capacity of water at constant pressure is 75JK1mol1 . 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:

A) 6.6 K

B) 1.2 K

C) 2.4 K

D) 4.8 K

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Answer:

Correct Answer: C

Solution:

  • Heat capacity of water per gram =7518=4.17J

Q=mst ; 1000=100×4.17×t

t=1000100×4.17=2.4K .



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