1 gm steam at 100° can melt how much ice at 0°C

Monjur Alahi

1 gm steam at 100° can melt how much ice at 0°C

A) 80/540 gm

B) 540/80 gm

C) 8 gm

D) 8 kg


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Salim Ahmed Kawsar

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The correct option is (D) 8 kg

Suppose m gm ice melted, then heat required for its melting = mL = m × 80 cal.

Heat available with steam for being condensed and then brought to 0∘C.

= 1 × 540 + 1 × 1 × (100 − 0) = 640 cal

⇒ heat lost = heat taken

⇒ 640 = m × 80 

⇒ m = 8 gm.

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