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3 years ago

How much mass of ice at 0℃ must melt when ∆Q=948000 J of heat energy is added to it?

Physics

1 answer:

butalik [34]3 years ago

6 0

<h2>The ice melted is nearly 2.8 kg </h2>

Explanation:

The quantity of heat required to melt the ice can be found by the relation .

ΔQ = m x L

here L is used for the latent heat of fusion .

Its value is 334 J per gram for ice .

Thus m = $\frac{\Delta Q}{L}$ = $\frac{948000}{334}$ = 2836 gram

or = 2.8 kg approx

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Hello!

A 1350 kg car travels at 12 m/s. What is it's kinetic energy ?

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m (mass) = 1350 kg

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$\boxed{\boxed{KE = 97200\:Joule}}\:or\:\boxed{\boxed{KE = 97.2\:kJ}}\Longleftarrow(kinetic\:energy)\:\:\:\:\:\:\bf\blue{\checkmark}$

_______________________

$\bf\green{I\:Hope\:this\:helps,\:greetings ...\:Dexteright02!}\:\:\ddot{\smile}$

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