Some Basic Concepts Of Chemistry Question 272

Question: The molar heat capacity of water at constant pressure is 75 JK1mol1 . When 1.0 kJ of heat is supplied to 100 g of water which is free to expand, the increases in temperature of water is [CBSE PMT 2003]

Options:

A) 6.6 K

B) 1.2 K

C) 2.4 K

D) 4.8 K

Show Answer

Answer:

Correct Answer: C

Solution:

Heat capacity of water per gram =7518=4.17

Q = mST 1000=100×4.17×t

t=1000100×4.17=2.4,K .



NCERT Chapter Video Solution

Dual Pane