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सिरकभन्दा नयाँ सिरक न्यानो अनुभव हुन्छ । किन ? दिइएको चित्र अध्ययन गरी तलका प्रश्नहरूको
दिनुहोस् ।
v quilt is felt warmer than an old one. Why? Study the given figure and answer the following questions.
प प्रसारणको दिशा कता हुन्छ र किन ? (What is the direction of heat flow and why?)
(Ans: 48.99
70°C
Stopper
250
दि स्टपरलाई खोलिदियो भने उक्त मिश्रणको अन्तिम तापक्रम कति हुन्छ, जब उक्त भाँडोबाट बाहिर तथा
हिरबाट उक्त भाँडोमा तापको प्रसारण हुँदैन ।
A
B
"What will be the equilibrium temperature if the stopper is opened, assuming there is no heat gain or loss in the system. (Ans:
see 21000 W को हिटर एक


Sagot :