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1.The specific heat capacity of copper is 0.1 cal g-1 °C-1. Its value in JKg1 k-1will be1) 0.84 x 103 2) 0.42 x 103 3) 0.24 × 103 4) 4.2 103 |
Answer» answer : option (2) 0.42 × 10³ J/Kg/KThe specific heat capacity of copper, S = 0.1 cal/g/°C we have to find it in J/Kg/K we KNOW, 1 cal = 4.2 joule 1000g = 1 kg change in degree CELSIUS = change in Kelvin so, °C = K now 0.1 cal/g/°C = 0.1 (4.2 J)/(10^-3 Kg)/K = 0.1 × 4.2 × 10³/ J/Kg/K = 0.42 × 10³ J/Kg/K also read similar questions : 100 g of ice (LATENT heat 80 cal g–1, at 0°C) is mixed with 100 g of water (specific heat 1 cal g–1 °C–1) at 80°C. The F... 20g of steam at 100 degree C is passed into 100g of ice at 0 degree C. Find the resultant temperature if specific latent... |
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