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Standard XII

Physics

Calorimetry

If there are ...

Question

If there are no heat losses, the heat released by the condensation of x g of steam at $100^{o} C$ into water at $100^{o} C$ can be used to convert y g of ice at $0^{o} C$ into water at $100^{o} C$ . Than ratio y x is nearly

1 : 1

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2 : 1

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3 : 1

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2.5 : 1

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Solution

The correct option is C $3 : 1$
Heat loss by x gm of steam $= x \times 2260 J$
Heat gain by y gm of ice to become water at $100^{\circ} C$
$= y \times 334 + y \times 4.2 \times 100$
$2260 \times x = 754 \times y$
$3 \times x = y$
y:x = 3:1

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If there are no heat losses, the heat released by the condensation of x g of steam at 100oC into water at 100oC can be used to convert y g of ice at 0oC into water at 100oC. Than ratio y x is nearly

The correct option is C 3:1Heat loss by x gm of steam =x×2260JHeat gain by y gm of ice to become water at 100∘C=y×334+y×4.2×1002260×x=754×y3×x=yy:x = 3:1

If there are no heat losses, the heat released by the condensation of x g of steam at $100^{o} C$ into water at $100^{o} C$ can be used to convert y g of ice at $0^{o} C$ into water at $100^{o} C$ . Than ratio y x is nearly

The correct option is C $3 : 1$
Heat loss by x gm of steam $= x \times 2260 J$
Heat gain by y gm of ice to become water at $100^{\circ} C$
$= y \times 334 + y \times 4.2 \times 100$
$2260 \times x = 754 \times y$
$3 \times x = y$
y:x = 3:1