0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

# A beaker contains 200 gm of water. The heat capacity of the beaker is equal to that of 20 gm of water. The initial temperature of water in the beaker is 20∘C. If 440 gm of hot water at 92∘C is poured in it, the final temperature, neglecting radiation loss, will be nearest to58∘C73∘C68∘C78∘C

A
78C
B
58C
C
73C
D
68C
Solution
Verified by Toppr

#### Let the final temperature of the system be T.Thus the heat absorbed by the cold water and beaker system=200×1×(T−20)+20×1×(T−20)Heat lost be the hot water=440×1×(92−T)From conservation of heat energy,200×1×(T−20)+20×1×(T−20) =440×1×(92−T)⟹T=68∘C

Was this answer helpful?
16
Similar Questions
Q1
A beaker contains 200 gm of water. The heat capacity of the beaker is equal to that of 20 gm of water. The initial temperature of water in the beaker is 20C. If 440 gm of hot water at 92C is poured in it, the final temperature, neglecting radiation loss, will be nearest to
View Solution
Q2
A beaker contains 200 gm of water. The heat capacity of the beaker is equal to that of 20 gm of water. The
initial temperature of water in the beaker is 20C. If 440 gm of hot water at 92C is poured in it, the final
temperature (neglecting radiation loss) will be nearest to
View Solution
Q3

A beaker contains 200gm of water. The heat capacity of the beaker is equal to that of 20gm of water. The initial temperature of water in the beaker is 20C. If 440gm of hot water at 92C is poured into it, the final temperature od the system is

View Solution
Q4
A beaker contains 200 g of water. The heat capacity of the beaker is equal to that of 20 g water. The initial temperature of water in the beaker is 20oC. If 440 g of hot water at 92oC is poured in, the final temperature (neglecting radiation loss) will be nearly :
View Solution
Q5
A vessel contains 110 g of water. The heat capacity of the vessel is equal to that of 10 g of water. The initial temperature of water in the vessel is 10C. While the water and vessel are in thermal equilibrium, 220 g of hot water at 70C is poured into the vessel. Find the final temperature of the vessel + water system (neglecting radiation loss).
View Solution