विशिष्ट ऊष्मा क्षमता की इकाई क्या है?

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ISRO IPRC Technical Assistant Mechanical 10 Dec 2016 Official Paper
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  1. W/m/K 
  2. kg/m3
  3. MPa
  4.  J/ kg K 

Answer (Detailed Solution Below)

Option 4 :  J/ kg K 
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Explanation:

एक पदार्थ के विशिष्ट ऊष्मा क्षमता (c) को पदार्थ के प्रति इकाई द्रव्यमान ऊष्मा की उस मात्रा (ΔT) के रूप में परिभाषित किया जाता है जो 1°C से तापमान (ΔT) को बढ़ाने के लिए आवश्यक होता है।

where m = mass of kg, ΔQ = heat added or removed in J, and ΔT = heat increased or decreased in Kelvin (K).

विशिष्ट ऊष्मा क्षमता की इकाई Jkg-1K-1 है।

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