What is the entropy change of a 29.8 g ice cube that melts completely in a bucket of water whose temperature is just above the freezing point of water?

Explanation:

As we know that entropy change for phase conversion is given as

Here we know that heat required to change the phase of the ice is given as

here we have

m = 29.8 g = 0.0298 kg

L = 335000 J/kg

now we have

also we know that temperature is approximately same as freezing temperature

so we have

so here we have

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

6 cos 34, 6 sin 34 trig