Properties Of Solids And Liquids Question 23
Question: How much heat energy is gained when 5 kg of water at 20°C is brought to its boiling point (Specific heat of water = 4.2 kJ kg?1c?1) [BHU 2001]
Options:
A) 1680 kJ
B) 1700 kJ
C) 1720 kJ
D) 1740 kJ
Show Answer
Answer:
Correct Answer: A
Solution:
$ Q=m.c.\Delta \theta =5\times (1000\times 4.2)\times (100-20) $
$ =1680\times 10^{3}J=1680kJ $
