Questions
If there are no heat losses, the heat released by the condensation of x gm of steam at 100oC into water at 100oC can be used to convert y gm of ice at 0oC into water at 100oC. Then the ratio y : x is nearly
detailed solution
Correct option is D
Heat released to convert x gm of steam at 100oC to water at 100oC is x × 540 cals.If y gm of ice is converted from 0oC to water at 100oC it requires heat y×80+y×1×100=180y ∴ x×540=180y or yx=540180=31Similar Questions
A bullet of mass 5g , Travelling with a speed of 210 m/s , strikes a fixed wooden target . One half its kinetic energy is converted in to heat in the bullet while the other half is converted in to heat in the wood. The rise of temperature of the bullet if the specific heat of the material is 0.030 cal/ close to:
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