AP EAMCET · PHYSICS · Thermal Properties of Matter
The time taken for a calorimeter containing of water at to to is minutes. When the calorimeter contains of water, it takes minutes to cool from to . The water equivalent of the calorimeter is______
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
The equation of water equivalent in the first case is, mcdTdt=-kT1+T22-T0⇒75+xc62-589=-k62+582-T0....1 is the second case the equation of water equivalent, ⇒105+xc62-5812=-k62+582-T0...2 75+x9=75+x12⇒x=15 g
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