Question
Download Solution PDFइथाइल अल्कोहोलच्या द्रवीभवनाची विशिष्ट सुप्त उष्णता 100 Jg-1 आहे. 2.25 ग्रॅम इथाइल अल्कोहोलने शोषलेली उष्णता (J मध्ये) शोधा जेव्हा ती -114°C च्या द्रवणबिंदूच्या वेळी वितळते.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFस्पष्टीकरण:
संवेदी उष्णता:
- पदार्थाचे चरण न बदलता पदार्थाचे तापमान बदलण्यासाठी आवश्यक असलेली उष्णता किंवा उर्जा ही संवेदी उष्णता म्हणून परिभाषित केली जाते.
- गणितीयदृष्ट्या, ते याद्वारे दर्शविले जाऊ शकते:
Q = m × c × ΔT
Q = उष्णता वाढ किंवा हानी, m = वस्तुमान, c = विशिष्ट उष्णता, ΔT = तापमानात बदल
सुप्त उष्णता:
- चरण संक्रमण दर्शविणारी प्रणाली म्हणून त्याची व्याख्या केली जाऊ शकते.
- हे प्रणालीच्या अंतर्गत उर्जेमध्ये होणार्‍या बदलांचे वर्णन करते.
- स्थिर तापमानात, चरण संक्रमणादरम्यान, शोषलेल्या किंवा सोडल्या जाणार्‍या उष्णतेच्या प्रमाणाला सुप्त उष्णता म्हणतात.
गणितीयदृष्ट्या, ते याद्वारे दर्शविले जाऊ शकते:
Q = m × LH
जेथे m = वस्तुमान, LH = विशिष्ट सुप्त उष्णता
गणना:
दिलेले आहे:
निश्चित सुप्त उष्णता, LH = 100 Jg-1, वस्तूमान, m = 2.25 ग्रॅम
Q = m × LH
⇒ Q = 2.25 × 100 = 225 J
Last updated on Jun 26, 2025
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