1 gm steam at 100° can melt how much ice at 0°CA) 80/540 gmB) 540/80

1.	1 gm steam at 100° can melt how much ice at 0°CA) 80/540 gmB) 540/80 gmC) 8 gmD) 8 kg
Answer» 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.

1 gm steam at 100° can melt how much ice at 0°CA) 80/540 gmB) 540/80 gmC) 8 gmD) 8 kg

Answer»

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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1 gm steam at 100° can melt how much ice at 0°CA) 80/540 gmB) 540/80 gmC) 8 gmD) 8 kg

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