Properties Of Solids And Liquids Question 90

Question: A vessel contains 110 g of water. The heat capacity of the vessel is equal to 10 g of water. The initial temperature of water in vessel is 10°C. If 220 g of hot water at 70°C is poured in the vessel, the final temperature neglecting radiation loss, will be [UPSEAT 2000]

Options:

A) 70°C

B) 80°C

C) 60°C

D) 50°C

Show Answer

Answer:

Correct Answer: D

Solution:

Let final temperature of water be q

Heat taken = Heat given 110 ´1 (q - 10) + 10 (q - 10) = 220 ´ 1 (70 - q)

therefore q = 48.8°C » 50°C.



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक