After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. if the cooler contained 5.50 kg of ice and the temperature of the ground was 43.0 °c, calculate the energy that is required to melt all the ice at 0 °c. the heat of fusion for water is 80.0 cal/g.

Explanation:

Here we know that initial temperature of ice is given as

now the latent heat of ice is given as

now we also know that the mass of ice is

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

15.3 cos 65 degrees trig

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.