Question

QUESTION -:

The Fig . 5.22 shows a glass tumbler containing hot milk which is placed in a tub of cold water . State the direction in which heat will flow ? Give Explanation also ??

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Answer 1

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When we will bring two objects of different - different temperature always energy will be transferred hotter to cooler.

Also heat will flow from hot milk tumbler to tub of cold water.

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Answer 2

Answer ::

A glass tumbler containing hot milk which is placed in a tub of cold water, the direction in which heat will flow is from hot body to cold body.

Explanation :-

Heat always flows from a body at a higher temperature to a body of lower temperature. So, the glass tumbler containing hot milk which is placed in a tub containing cold water will transfer the heat from hot to cold, and the transfer of heat will continue till the two objects attain the same temperature and then maintain a constant temperature.

More Information

Some important concepts related to heat transfer :-

• Heat always flows from a body at a higher temperature to a body of lower temperature. [ Refer the attachment ]
• Heat is a form of energy which results in the sensation of hotness and coldness.

Relationships between various units of heat :-

• 1 Kilocalorie = 1000 calories
• 1 calorie = 4.184 joules
• 1 Kilocalorie = 4184 joules
• 1 joule = 0.24 calories.