500 గ్రా ద్రవ్యరాశి కలిగిన లోహం యొక్క విశిష్టోష్ణ సామర్థ్యాన్ని (Jg-1 K-1 లో) కనుగొనండి, ఇది 10 kJ ఉష్ణాన్నిగ్రహించినప్పుడు దాని ఉష్ణోగ్రత 80 °C పెరుగుతుంది?

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RRB ALP Fitter 23 Jan 2019 Official Paper (Shift 1)
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  1. 0.4
  2. 0.16
  3. 1.56
  4. 0.25

Answer (Detailed Solution Below)

Option 4 : 0.25
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Detailed Solution

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భావన:

విశిష్టోష్ణ సామర్థ్యం:

  • దీనిని ఉష్ణోగ్రతను ఒక డిగ్రీ మార్చడానికి అవసరమైన ఉష్ణం మొత్తంగా నిర్వచించవచ్చు.
  • గణితశాస్త్రపరంగా, అవసరమయ్యే ఉష్ణం, Q = mcΔT,
  • ఇక్కడ m = ద్రవ్యరాశి, c = విశిష్టోష్ణ సామర్థ్యం, ΔT = ఉష్ణోగ్రత వ్యత్యాసం
  • దీనిని Jg-1 K-1 లో కొలవవచ్చు.

లెక్కింపు:

ఇవ్వబడింది: ద్రవ్యరాశి, m = 500 గ్రా, ఉష్ణోగ్రత వ్యత్యాసం, ΔT = 80ºC, ఉష్ణోగ్రత, Q = 10 kJ

విశిష్టోష్ణ సామర్థ్యం,

అందువల్ల, విశిష్టోష్ణ సామర్థ్యం 0.25 Jg-1 K-1

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