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Standard XII

Physics

Calorimetry

10 kg storage...

Question

10 kg storage battery has an average specific heat of 0.2 kcal/kg $^{o}$ C. When fully charged, the energy content of the battery is 1 kcal. If the entire energy were used to raise the temperature, then the temperature would increase by

0.2

^{o}

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0.5

^{o}

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200

^{o}

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^{o}

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Solution

The correct option is B 0.5 $^{o}$ C
$H = m S △ T [H = 1 K c a l, m = 10 K g, S = 0.2 K c a l / K g ℃] \Rightarrow 1 = 10 \times 0.2 \times △ T \Rightarrow △ T = \frac{1}{10 \times 0.2} \Rightarrow △ T = 0.5 ℃$

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10 kg storage battery has an average specific heat of 0.2 kcal/kgoC. When fully charged, the energy content of the battery is 1 kcal. If the entire energy were used to raise the temperature, then the temperature would increase by

The correct option is B 0.5oCH=mS△T[H=1Kcal,m=10Kg,S=0.2Kcal/Kg℃]⇒1=10×0.2×△T⇒△T=110×0.2⇒△T=0.5℃

10 kg storage battery has an average specific heat of 0.2 kcal/kg $^{o}$ C. When fully charged, the energy content of the battery is 1 kcal. If the entire energy were used to raise the temperature, then the temperature would increase by

The correct option is B 0.5 $^{o}$ C
$H = m S △ T [H = 1 K c a l, m = 10 K g, S = 0.2 K c a l / K g ℃] \Rightarrow 1 = 10 \times 0.2 \times △ T \Rightarrow △ T = \frac{1}{10 \times 0.2} \Rightarrow △ T = 0.5 ℃$