AP Police Constable practice question
The heat required to raise the temperature of 2 kg of water by 10 °C (specific heat capacity of water = 4200 J kg⁻¹ °C⁻¹) is:
From a AP Police Constable General Awareness practice set · General Awareness
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Correct answer: (B) 84 kJ
Q = mcΔT = 2 × 4200 × 10 = 84,000 J = 84 kJ. **తె:** 84 కిలోజౌల్స్.
हिंदी में प्रश्न
2 కి.గ్రా. నీటి ఉష్ణోగ్రతను 10 °C పెంచడానికి కావలసిన ఉష్ణం (నీటి విశిష్టోష్ణం 4200 J/kg°C)?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 84 kJ
Q = mcΔT = 2 × 4200 × 10 = 84,000 J = 84 kJ।
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